Commercial lease solicitor: what small businesses need to know

A commercial lease solicitor reviews your lease, flags the clauses that cost you money, and tells you what to ask the landlord to change before you sign. This guide explains what to expect in cost, service and turnaround when hiring a commercial lease solicitor, how it compares with other ways to check a lease, and how to choose the right person for your business.

Key takeaways

• A commercial lease solicitor checks rent, rent review, break clauses, repair duties, service charges, guarantees and how the lease ends.
• Costs depend on lease length, complexity, rent value and whether you need a lease extension or negotiation support.
• Ask for a written quote, a fixed fee or clear estimate, and confirm who will do the work before you instruct.
• An AI contract check can flag risky sentences quickly and help you prepare questions before speaking to a solicitor.
• Never sign an unlimited personal guarantee without legal advice, and check the rules where you are before agreeing to any term.

What does a commercial lease solicitor check

A thorough review of a commercial lease should look at more than the rent. A solicitor should check the rent review clause, the break clause, repair and dilapidations obligations, service charge provisions, any personal guarantee, and how the lease ends. They should also explain the heads of terms you have already agreed and whether the lease matches them.

Real wording you might see includes "the tenant shall keep the premises in good and substantial repair" or "the rent shall be reviewed upwards every three years to the open market rent." A solicitor should explain what those sentences mean in practice, not just translate them.

A fair review should give you a list of risks, a suggested counter-ask for each one, and a view on which points are worth negotiating and which are likely to be accepted. For example, if the lease says rent can only go up at review, you can ask for a cap or a collar so the rent cannot rise without limit. If the break clause says you must comply with all covenants to exercise it, you can ask for the condition to be limited to paying rent and giving proper notice.

Say you run a cafe and the lease says you must keep the premises in good and substantial repair. That could mean replacing the roof or rewiring the electrics even if they were old when you moved in. Ask for a schedule of condition with dated photos before you move in, and limit your repair duty to that state plus fair wear and tear, excluding the structure.

Ask the solicitor to give you a one-page risk table with a suggested counter-ask for each clause.

Rent review and upward-only clauses

Rent reviews can lock you into increases that are hard to predict. An upward-only market review means the rent can go up but never down, even if market rents fall. Example: a 5-year lease at £25,000 per year with upward-only review could jump to £35,000 if the market moves. You can ask for a fixed increase, a capped increase, or a collar that sets a floor and a ceiling. Make sure you know when the review happens and how the new rent is calculated.

Break clauses and exit rights

A break clause lets you end a lease early, but only if you meet every condition in it. Some leases require you to comply with all covenants, pay all rent due, and give vacant possession. That is a high standard and easy to fail. Ask for a break that depends only on giving proper notice and paying rent up to the break date, no "full compliance with all covenants" condition. Check the notice period carefully, because missing it by a few days can lose your right to break.

Repair, dilapidations and service charge

Repair obligations can reach far beyond day-to-day maintenance. A clause requiring you to keep the premises in good and substantial repair can include structural elements and old systems. Limit your duty to the condition at the start of the lease, recorded with a schedule of condition or photos, and exclude fair wear and tear. Service charge provisions should say what is included, how it is calculated, and whether you can challenge the amount.

What drives commercial lease cost and turnaround

Cost varies with the length and complexity of the lease, the value of the rent, whether the property is new or second hand, and how quickly you need the review done. A short lease for a small shop will typically cost less than a long lease for a clinic with fit-out works and a personal guarantee. Turnaround depends on the solicitor's workload and whether they need to raise enquiries with the landlord's solicitor.

Price ranges vary by location and by firm. Some solicitors charge a fixed fee for a lease review, while others bill by the hour. You should ask for a written quote before instructing anyone. A higher price does not mean a better review, and a low fixed fee does not always include negotiation with the landlord.

If you need a lease extension, the process can involve valuation and negotiation, or a voluntary extension outside statutory protections. A solicitor experienced in lease extensions can advise on which route applies and what the landlord may ask for in return. Lease solicitors often handle extensions as a separate piece of work from the initial review.

How to choose between a solicitor, an AI check, a template or doing it yourself

You have four practical options. Each has a role depending on the money at stake and your confidence with contracts.

A commercial lease solicitor is the right choice when the rent is material to your business, the term is five years or more, or the landlord asks for a personal guarantee. They can negotiate on your behalf and advise on points that vary between England and Wales, Scotland and Northern Ireland.

An AI contract check is useful when you want to see risky sentences quickly and prepare questions before speaking to a solicitor. AxiomRisk reads your uploaded lease and quotes the risky sentences word for word, explains why each one matters, and suggests what to ask the other side. It is not a law firm and does not give legal advice. It works well as a first pass or as a way to make a solicitor's time more focused.

A template can help you understand standard clauses, but it will not reflect the specific lease in front of you or the local rules that apply. Doing it yourself saves fees upfront but can be expensive later if you miss a rent review trap or an unlimited repair obligation.

Questions to ask before you instruct a commercial lease solicitor

Ask the solicitor how many commercial leases they review each year and whether they act for tenants as well as landlords. Ask for a fixed fee or a clear estimate, and confirm whether the fee includes a call to discuss the findings. Ask who will do the work and whether a trainee or paralegal will review the draft before a senior solicitor signs off.

Ask about turnaround. If you need to exchange signed leases within two weeks, a solicitor with a full caseload may not be able to help. Ask whether they can attend a site visit or review the property details, although most lease reviews focus on the document rather than the building.

Ask what happens if you want to negotiate. Some solicitors will review and advise but will not correspond with the landlord's solicitor. Others will handle the full negotiation for an additional fee. Know which service you are buying.

Red flags to watch for

Be cautious if a solicitor cannot explain a clause in plain language. If they only say "that is standard" without telling you what it means for your rent or your repair bill, ask for more detail.

Avoid anyone who promises a specific outcome, such as guaranteeing the landlord will remove a personal guarantee. Negotiation depends on the landlord's position and the market, not on the solicitor's promise.

Watch out for hidden costs. A fixed fee for a review may not include attending negotiations, drafting a deed of variation, or advising on a lease extension. Confirm what is included and what will be billed separately.

If the solicitor pressures you to sign quickly without explaining the dilapidations or service charge clauses, slow down. A commercial lease locks you in for years, and getting it wrong can cost more than the legal fees you save by rushing.

Personal guarantees and bank guarantees

Never sign an unlimited personal guarantee without legal advice. Landlords often ask for security when the tenant is a new limited company or a sole trader with limited assets. A personal guarantee makes an individual responsible for the tenant's obligations under the lease. Ask for a cap of 6 to 12 months' rent, an end date, or a larger deposit instead.

A bank guarantee for a commercial lease is a promise by a bank to pay the landlord a set amount if the tenant fails to meet its obligations. It is common in some commercial leases as an alternative to a rent deposit or personal guarantee. The bank will usually require security from you before issuing it, and the wording can allow the landlord to call on it without proving a loss. Ask your solicitor to check the trigger conditions and the expiry date.

If you are trying to work out how to get out of a personal guarantee on a commercial lease, the options depend on the wording of the guarantee and whether the landlord agrees to release you. Some guarantees end when the lease is assigned to a new tenant, while others continue until the landlord consents in writing. A solicitor can review the guarantee and advise on whether a release, a replacement guarantor, or a capped liability is possible.

When to use AxiomRisk before instructing a solicitor

If you have the lease open and need to reply this week, an AI check can show you the risky sentences before you book a solicitor. AxiomRisk quotes the risky sentences from your file, explains why each one matters, and suggests what to ask the other side. It helps you walk into a solicitor's office knowing which clauses matter, which can make the legal review faster and more focused. It is not a substitute for legal advice, and it is not a law firm.

Making the decision

Choose a commercial lease solicitor when the lease is long, the rent is significant, or the landlord wants a personal guarantee. Use an AI check first if you want to understand the risks quickly and prepare your questions. Avoid relying on a template or on your own reading when the money involved is material to your business.

Get a solicitor when the rent is material to your business, the term is five years or more, or the landlord insists on a personal guarantee.

Ask for a written quote, confirm the turnaround, and check that the solicitor acts for tenants. If anything feels rushed or unclear, take time to get a second opinion. A commercial lease is one of the most expensive contracts a small business signs, and it is worth getting the review right.

Next step

Check your contract free at check your contract free. Upload your lease and see the risky sentences quoted from your file before you speak to a solicitor.