How do I know if a law firm is regulated in England and Wales?

Check the firm's authorisation with the Solicitors Regulation Authority. Regulated firms appear on the SRA's register with a firm number and authorised office details. Reserved legal activities such as conducting litigation and most conveyancing can only be provided by an authorised firm or person.

Can I instruct a commercial solicitor in another city?

Yes. Most commercial work - contracts, corporate transactions, employment advice - is handled remotely without difficulty. Location matters more for property matters requiring local knowledge, court proceedings in a particular venue, and matters requiring frequent site attendance.

How many law firms should I approach?

Three to five is usually right. Fewer gives no meaningful comparison; more increases the cost and delay of the selection process without improving the decision, unless the matter is very large.

Should I use a solicitor or a barrister?

Most businesses instruct a solicitor, who manages the matter and instructs a barrister for advocacy or specialist opinion where needed. Some barristers accept direct instructions through the Public Access scheme, but that route does not include the case management and litigation conduct a solicitor provides.

Can I change solicitors part way through a matter?

Usually yes, though you will owe fees for work already done and there may be a cost to transferring the file. In litigation, changing solicitors on the record requires a formal step and can affect the timetable. Check the termination provisions in your engagement letter first.

What should I do if I am unhappy with my solicitor?

Raise it with the firm first through its internal complaints procedure, which every SRA-regulated firm must have. If the response does not resolve matters, you may be able to refer a service complaint to the Legal Ombudsman, and conduct concerns to the SRA.

How long does it take to instruct a commercial law firm?

Where the matter is straightforward and your documents are ready, engagement and identity checks can complete within a few working days. Complex conflict checks, corporate ownership structures or source-of-funds evidence can extend this, so start earlier where a deadline is fixed.

Is the cheapest quote usually the best value?

Rarely. The lowest quote is often the narrowest scope, and the difference tends to appear later as additional charges. Compare quotes only after normalising scope, assumptions, disbursements and VAT treatment.

Choosing a firm

How to choose a commercial law firm

13 min read · 3,009 words · Published 2026-01-14 · Last reviewed 2026-08-05

Choosing a commercial law firm is a procurement decision as much as a legal one. The firm you instruct affects what a transaction costs, how long it takes, how much of your own team's time is consumed, and how exposed your business is if something later goes wrong. Yet most businesses choose on the basis of a personal recommendation and a single phone call.

This guide sets out a structured way to make that decision: define the matter precisely, build a shortlist of firms that genuinely do that work, verify that each is regulated by the Solicitors Regulation Authority (SRA), test them on experience, capacity and price, and then agree a scope and fee basis in writing before work begins.

It applies to businesses instructing solicitors in England and Wales. Scotland and Northern Ireland have separate legal systems and separate regulators. Nothing here is legal advice on your situation; it is general information about how commercial legal services are bought and delivered.

Key takeaways

Define the matter, the outcome you want and any deadlines before you approach any firm - this is what determines the shortlist.
Only firms authorised by the SRA can carry out reserved legal activities such as litigation and conveyancing; always verify current authorisation.
Sector and matter-type experience matters far more than firm size for most commercial instructions.
Ask who will actually do the work, not just who attends the pitch.
Get the fee basis, scope, assumptions, disbursements and VAT treatment in writing in the engagement letter.
Three to five firms is usually the right shortlist: enough for genuine comparison, not so many that the process costs more than it saves.

Step 1: Define the matter before you define the firm

Commercial law is highly specialised. A firm that is excellent at industrial leases may have no meaningful experience of a contested shareholder exit, and a firm known for large corporate transactions may not be the most efficient choice for a £40,000 debt claim. The single biggest cause of a poor instruction is approaching firms before you can describe precisely what you need.

Write a short brief - a page is usually enough. It should cover what has happened in date order, what outcome you want, what the commercial value at stake is, and any dates that constrain you. Deadlines are the detail businesses most often omit and the one most likely to change which firms can help.

What your brief should contain

A factual chronology, with dates and the parties involved
The commercial outcome you want, and the outcome you would settle for
The value at stake, including any ongoing loss
Deadlines: contractual notice periods, limitation dates, court deadlines, deal timetables, funding conditions
Documents already in your possession
Whether anyone else has already advised on the matter
Any relationships or conflicts that could affect who can act

Limitation and other hard deadlines

Many commercial claims in England and Wales are subject to limitation periods under the Limitation Act 1980 - commonly six years for breach of contract and for most tort claims, running from a date that depends on the type of claim. Once a limitation period expires the claim is usually lost regardless of merit. If there is any prospect that a deadline is near, say so in the first sentence of any approach to a firm; it changes their triage.

If a deadline may be close, act now

Do not delay an approach to a solicitor in order to run a tidy selection process. Instruct on a limited basis to protect the position, then run the wider process for the substantive work.

Step 2: Understand the types of firm in the market

The commercial legal market in England and Wales is not a single pool of interchangeable providers. Understanding the segments makes the shortlist far more efficient, because each segment has a characteristic cost base, capacity profile and appetite for work.

Does firm size actually matter?

Size affects capacity and breadth, not inherently the quality of the advice on a given point. A larger firm can staff a document-heavy transaction overnight and absorb a sudden litigation deadline; a smaller firm can often give you more senior attention per pound spent. Match the firm to the complexity and value of the matter, not to the size of your ambitions.

The relevant question is whether the firm handles matters of your type and scale routinely. A matter that is unusually large for a small firm, or unusually small for a large one, tends to be handled less well than a matter that sits squarely in the firm's normal range.

Scroll the table sideways to see all columns.

Segments of the commercial legal market and what each is typically suited to
Type of provider	Typically suited to	Trade-offs
High street and small commercial practices	Owner-managed businesses, contracts, employment, debt recovery, commercial property under a few million pounds	Lower cost base and direct partner contact; limited bench strength for large or urgent multi-workstream matters
Regional and mid-market firms	Corporate transactions, commercial disputes, property portfolios, sector-specialist advice	Strong balance of specialism and cost; may lack niche regulatory or international coverage
National and City firms	High value transactions, complex regulatory matters, multi-jurisdictional work, large-scale disputes	Deep specialism and capacity; the highest hourly rates and often the largest teams on a matter
Boutique and niche practices	A single specialism such as IP, competition, construction, insolvency or shareholder disputes	Genuine depth in one area at mid-market pricing; limited coverage when a matter spreads across disciplines
Alternative and fixed-fee providers	Volume contract work, templates, document review, in-house style support	Predictable pricing for repeatable work; usually not the right route for contentious or bespoke matters

Step 3: Check regulation and professional indemnity cover

Solicitors and law firms in England and Wales are regulated by the Solicitors Regulation Authority. Certain activities - including conducting litigation, exercising rights of audience, most conveyancing and probate work, and the administration of oaths - are 'reserved legal activities' under the Legal Services Act 2007 and can only be carried out by an authorised person or body.

Regulation matters for practical reasons as well as legal ones. SRA-regulated firms must carry qualifying professional indemnity insurance to a minimum level, hold client money under the SRA Accounts Rules, operate a complaints procedure, and give clients access to the Legal Ombudsman. Unregulated providers of legal services are not required to do any of those things.

What to verify before instructing

That the firm is currently authorised by the SRA, and under what name and firm number
The office you are dealing with, since regulatory status attaches to the firm rather than to a website
That the individual advising is a solicitor, chartered legal executive, licensed conveyancer or other authorised person, or is properly supervised
That professional indemnity insurance is in place
Whether the firm holds client money, and how it handles it

Beware of the obvious frauds

Firm impersonation and bank-detail interception are persistent problems in legal transactions. Take contact details from the SRA's own records rather than from an email, and verify any change of bank details by telephone using a number you have independently confirmed. Never act on payment instructions received only by email.

How this directory handles regulatory data

Firm records here are built from SRA-published data and refreshed periodically. Data can lag or contain errors, so treat this directory as a starting point and confirm current authorisation with the SRA before instructing.

Step 4: Build a shortlist of three to five firms

A shortlist below three gives you no comparison; above five, the cost of running the process starts to outweigh the benefit. Draw candidates from more than one source so that you are not simply testing one person's opinion.

Where good candidates come from

Directories that let you filter by service area, sector and location
Recommendations from your accountant, bank relationship manager, insurance broker or corporate finance adviser
Other businesses in your sector who have handled the same type of matter
Trade bodies and sector networks
Published work: sector commentary, case studies, speaking engagements and reported cases

Filtering signals worth weighting

Named individuals whose stated specialism matches your matter type
Evidence of repeat work in your sector rather than a generic sector list
Team depth in the relevant discipline, so the matter does not stall if one person is unavailable
Geographic fit where it matters - property, court venue and site visits, but rarely for contract work
Absence of an obvious conflict with your counterparty

Step 5: The questions that actually separate firms

Most firms answer general questions equally well. The questions worth asking are specific, and they concentrate on delivery rather than credentials.

On experience

How many matters of this type have you handled in the last twelve months?
What is the closest matter to mine that you have run, and what happened?
Which parts of this matter are outside your team's normal work?
Who would you refer the specialist elements to, and at what cost?

On the team and capacity

Who will do the day-to-day work, and what is their qualification and experience?
Who supervises, and how often will they review the file?
What is your current workload, and what happens if this matter accelerates?
Who covers the file during holidays or illness?
What is your response time commitment for calls and emails?

On price and process

What fee basis do you propose, and why is it the right one for this matter?
What assumptions is that estimate based on, and what would change it?
What disbursements should I budget for, and is VAT included in the figures you have quoted?
How often will you bill, and how will you tell me before costs exceed the estimate?
What could I or my team do to reduce the fee?

On risk

What is the realistic range of outcomes, including the bad ones?
What is the earliest point at which we will know whether this is going well?
What would you advise if the position deteriorates?

Step 6: Compare fees on a like-for-like basis

Quotes are rarely comparable as issued, because firms make different assumptions about scope. Before comparing numbers, normalise them: same scope, same assumptions, same treatment of disbursements and VAT, same handling of the parts of the work that might not be needed.

Our companion guide on how commercial solicitors charge covers fee structures in detail. For selection purposes, the point is that the lowest quoted figure is frequently the narrowest scope, and the difference tends to surface as extra charges later.

Scroll the table sideways to see all columns.

Normalising quotes before comparison
Element	What to check	Why it distorts comparison
Scope	Exactly which documents, stages and negotiations are included	A quote that excludes negotiation rounds will always look cheaper
Assumptions	Number of parties, rounds of amendments, volume of documents	Assumptions are where a fixed fee quietly becomes variable
Disbursements	Search fees, court fees, counsel's fees, experts, Companies House filings	Third-party costs can exceed the legal fee in litigation and property
VAT	Whether quoted figures are inclusive or exclusive	A 20% difference that has nothing to do with the firm's price
Billing	Frequency, payments on account, interest on late payment	Affects cash flow even where the total is the same

Step 7: Conflicts, onboarding and anti-money-laundering checks

Before a firm can act, it must check for conflicts of interest and complete client due diligence. For businesses this typically includes identifying the entity, its beneficial owners and the individuals giving instructions, and evidencing the source of funds where money is moving.

These checks are a regulatory obligation and cannot be skipped. Preparing for them in advance removes several days from the start of a matter, which matters most when a deadline is close.

Have ready before your first meeting

Company registration number and registered office details
Details of directors and persons with significant control
Photo identification and proof of address for those giving instructions
Evidence of the source of funds for transactions
Details of the counterparty and any connected entities, for the conflict check
Your brief and the core documents

Step 8: Read the engagement letter properly

The engagement letter and the firm's terms of business are the contract for the work. They should record scope, the fee basis, who is responsible for the matter, how complaints are handled and your right to refer a complaint to the Legal Ombudsman. Read them before signing rather than after the first invoice arrives.

Clauses worth checking

Scope: what is included, and what is expressly excluded
Fee basis, hourly rates by fee earner, and how time is recorded
Any cap or fixed fee, and the circumstances in which it ceases to apply
Disbursements, and whether payments on account are required
Liability caps, which are common and sometimes negotiable on larger matters
Termination rights and what is payable if you change firms mid-matter
File storage, retention and the cost of retrieving papers later

Warning signs during the selection process

Reluctance to give a written estimate, or an estimate with no stated assumptions
The person who will do the work is never made available before instruction
Confident predictions of outcome in a contested matter before the documents have been read
Slow or vague responses at the pitch stage, when a firm is at its most attentive
Pressure to sign quickly, particularly where funds are involved
No clear answer on regulatory status, insurance or complaints handling
Bank details supplied by email, or changed by email

Common mistakes businesses make

The recurring errors are procedural rather than legal, and all of them are avoidable.

Instructing on price alone, then paying twice when scope gaps surface
Choosing a firm because it acted on an unrelated matter years ago
Leaving the approach until a deadline is days away, which removes all negotiating leverage
Failing to name a single internal owner, so the firm receives contradictory instructions
Withholding unhelpful facts, which almost always emerge later at greater cost
Treating the engagement letter as a formality
Never reviewing the relationship after the matter closes

Getting value once you have instructed

Selection is only half of the outcome. How you run the relationship has a direct effect on cost, because most commercial legal work is priced against time and most wasted time is caused by unclear instructions or disorganised information.

Appoint one person internally to give instructions and receive advice
Send documents in one organised bundle rather than in a stream of emails
Batch questions instead of calling as each one arises
Agree reporting points and a budget review trigger at the outset
Do the work your team can reasonably do: chronologies, document collation, data-room population
Say early if the commercial objective changes

Final selection checklist

The matter is defined in writing, including deadlines
Three to five firms with relevant, recent experience were considered
Current SRA authorisation has been confirmed
You know who will do the work and who supervises
Quotes have been normalised for scope, assumptions, disbursements and VAT
Conflict and identity checks are complete
The engagement letter has been read, and the scope matches your brief

Frequently asked questions

How do I know if a law firm is regulated in England and Wales?: Check the firm's authorisation with the Solicitors Regulation Authority. Regulated firms appear on the SRA's register with a firm number and authorised office details. Reserved legal activities such as conducting litigation and most conveyancing can only be provided by an authorised firm or person.
Does a bigger law firm always mean better advice?: No. Firm size affects capacity and breadth of coverage rather than the quality of advice on a specific point. Match the firm to the complexity and value of the matter; a matter that is unusually large or unusually small for a firm tends to be handled less efficiently.
Can I instruct a commercial solicitor in another city?: Yes. Most commercial work - contracts, corporate transactions, employment advice - is handled remotely without difficulty. Location matters more for property matters requiring local knowledge, court proceedings in a particular venue, and matters requiring frequent site attendance.
How many law firms should I approach?: Three to five is usually right. Fewer gives no meaningful comparison; more increases the cost and delay of the selection process without improving the decision, unless the matter is very large.
Should I use a solicitor or a barrister?: Most businesses instruct a solicitor, who manages the matter and instructs a barrister for advocacy or specialist opinion where needed. Some barristers accept direct instructions through the Public Access scheme, but that route does not include the case management and litigation conduct a solicitor provides.
What is the difference between a solicitor and an unregulated legal adviser?: SRA-regulated solicitors must hold qualifying professional indemnity insurance, comply with the SRA Accounts Rules for client money, operate a complaints procedure and give clients access to the Legal Ombudsman. Unregulated advisers are not subject to those requirements and cannot carry out reserved legal activities.
Can I change solicitors part way through a matter?: Usually yes, though you will owe fees for work already done and there may be a cost to transferring the file. In litigation, changing solicitors on the record requires a formal step and can affect the timetable. Check the termination provisions in your engagement letter first.
What should I do if I am unhappy with my solicitor?: Raise it with the firm first through its internal complaints procedure, which every SRA-regulated firm must have. If the response does not resolve matters, you may be able to refer a service complaint to the Legal Ombudsman, and conduct concerns to the SRA.
How long does it take to instruct a commercial law firm?: Where the matter is straightforward and your documents are ready, engagement and identity checks can complete within a few working days. Complex conflict checks, corporate ownership structures or source-of-funds evidence can extend this, so start earlier where a deadline is fixed.
Is the cheapest quote usually the best value?: Rarely. The lowest quote is often the narrowest scope, and the difference tends to appear later as additional charges. Compare quotes only after normalising scope, assumptions, disbursements and VAT treatment.