The short answer
Treat a long, legal-sounding tenant complaint as ordinary correspondence, whether or not AI helped write it: split it into separate issues, check each one against your records and current law, and reply in writing. In England, landlords remain responsible for repairs to the structure, exterior and the water, gas, electricity, sanitation and heating installations under section 11 of the Landlord and Tenant Act 1985, and tenancies have been governed by the Renters' Rights Act 2025 since 1 May 2026, not by the old section 21 regime.
Key facts
- For most tenancies of under seven years, section 11 of the Landlord and Tenant Act 1985 requires the landlord to keep in repair the structure and exterior, including drains, gutters and external pipes, and the installations for water, gas, electricity, sanitation, space heating and hot water. legislation.gov.uk
- Landlords in England must give tenants at least 24 hours' notice of access for repairs, although immediate access may be possible in emergencies. GOV.UK
- If a landlord does not deal with hazards, a tenant can ask the council to inspect the property under the Housing Health and Safety Rating System. GOV.UK
- The Renters' Rights Act changes took effect on 1 May 2026, and landlords can no longer evict using the section 21 "no fault" process. GOV.UK
- A Private Rented Sector Landlord Ombudsman is planned, but the requirement for landlords to join it is expected in 2028. GOV.UK implementation roadmap
Start with the issues, not the writing style
A lengthy complaint with legal language is not, by itself, evidence that the complaint is either correct or unfounded. It may have been written or expanded with AI, but the useful first step is the same in every case: identify the tenant’s specific concerns, check the facts and respond to the points that matter.
Treat the message as correspondence from your tenant, rather than trying to prove who drafted it. A complaint can contain a genuine repair, safety, access, communication or tenancy concern even where some of its wording is inaccurate, out of date or overstated.
The practical approach is to:
- acknowledge receipt and read the complaint in full;
- break it into separate allegations, requests and questions;
- collect the records relevant to each point;
- check any legal or regulatory assertion against current authoritative information;
- decide what action, investigation or explanation is needed; and
- send a clear response written and reviewed by a person.
This helps you avoid two common mistakes: accepting legal-sounding wording as automatically authoritative, or dismissing a substantive issue because the complaint appears AI-assisted.
Why this is becoming a landlord concern
LandlordZONE’s report on agents and AI-generated complaints says Propertymark representatives and quoted letting agents have reported a rise in long, complex complaints that may have been generated with AI. Their concern is not simply the length of the messages; it is the time required to establish which points are legitimate and which assertions need correcting.
The report also notes concerns that AI tools can blend material from proposed legislation, including the former Renters’ Reform Bill, with outdated information. That makes it especially important not to rely on a complaint’s citations, terminology or confident tone as a statement of current obligations. In England, the Renters' Reform Bill never became law. Its successor, the Renters' Rights Act 2025, has applied to private tenancies since 1 May 2026, so a complaint that refers to section 21 notices or fixed-term assured shorthold rules may be describing the old system.
These are reported experiences from agents and industry representatives, not proof that every detailed tenant complaint is AI-generated or lacks merit. For a self-managing landlord, the sensible response is a consistent evidence-led review.
Turn one long email into a review list
Copy the complaint into a working note and give each distinct point its own line. Avoid grouping several issues under a broad label such as “disrepair” or “breach”. A more useful list might separate:
- what the tenant says happened;
- the date or period they say it happened;
- the property area or tenancy matter involved;
- what they say they want you to do;
- any legal or regulatory assertion they have made; and
- the records you need to check.
For example, a paragraph about a delayed repair may contain several separate matters: when the fault was reported, whether access was offered, what contractor visits took place, whether a temporary measure was provided, and whether the tenant is asking for a particular outcome. Each can be checked separately.
This process also makes it easier to spot vague claims. If a statement does not identify an event, date, condition or requested outcome, ask the tenant for clarification rather than guessing what they mean.
Build a fact file before reaching conclusions
For each issue, gather the contemporary records rather than relying on memory. Depending on the complaint, that could include:
- the tenancy agreement and any relevant written correspondence;
- repair reports, contractor communications, invoices and completion notes;
- inspection notes and dated property photographs;
- records of appointments, access arrangements and missed visits;
- records of payments or other tenancy administration; and
- earlier complaints and the responses already sent.
Keep the original complaint and your working notes together with the supporting documents. A simple spreadsheet or list can help: record the tenant’s point, the evidence checked, what the evidence shows, what remains uncertain and the next action.
An organised record of property, tenancy and documents can reduce the time needed to reconstruct events. If you want a workflow for keeping that material together, you can see how Portfoliq works. The important point is that the final judgement should remain human-led.
Check legal claims separately from factual claims
A tenant may refer to legislation, guidance, proposed reforms or a duty they believe applies. Do not assume the reference is current simply because it is detailed or uses formal language.
Separate the underlying factual issue from the legal conclusion. For instance, the factual question may be whether a repair was reported and how it was handled; the legal assertion is the tenant’s view of what that means. Check both, but do not let an unverified legal conclusion decide the factual review.
Use current authoritative sources appropriate to the property’s jurisdiction when checking specific legal or regulatory assertions. For repairs in England, start with section 11 of the Landlord and Tenant Act 1985 and the GOV.UK guidance on making repairs. For tenancy rules, start with the government's overview of the Renters' Rights Act. If you cannot verify a point confidently, do not make a sweeping legal counterclaim in your reply. Consider obtaining suitable professional advice for the particular circumstances.
This article is general information, not legal, tax, financial or investment advice.
Use AI, if at all, as an organising tool rather than the decision-maker
The LandlordZONE report quotes an agent who uses AI to summarise and analyse lengthy correspondence but relies on human expertise for the response. That distinction is useful for landlords too.
If you use an AI tool to help organise a long message, treat its output as a draft checklist, not as evidence or legal guidance. Review the original tenant correspondence yourself and verify every important point against your records and current authoritative information.
Do not ask a tool to make the final decision on whether a complaint is valid, what your obligations are or how you should respond. It may omit context, misread dates or present outdated information confidently.
Write a response the tenant can follow
A considered response does not need to mirror every legal phrase in the complaint. It should be structured around the actual issues and make clear what you have checked and what will happen next.
A useful format is:
- Acknowledge the complaint. Confirm that you have reviewed the matters raised.
- Answer each issue in turn. Use headings or numbered points that match your review list.
- State the information you relied on. Summarise relevant dates, communications or repair records in neutral language.
- Explain the action. Say what you will investigate, arrange, provide or review, and distinguish this from points where you need more information.
- Correct inaccuracies carefully. Where an assertion is not supported by your records or current information, explain your position without accusing the tenant of bad faith.
- Invite clarification where needed. Ask focused questions about missing dates, evidence or the outcome sought.
Keep the tone factual and respectful. Avoid responding to the apparent use of AI unless there is a clear practical reason to do so; it usually does not help resolve the underlying concern.
Where can a tenant take the complaint next?
Knowing the escalation routes helps you write a response that deals with the real risk. In England:
- The council: if a tenant believes a hazard has not been dealt with, they can ask the council to inspect the property under the Housing Health and Safety Rating System. The council can then require the landlord to act.
- The courts: GOV.UK says a tenant can make a small claim for repairs under £5,000.
- An ombudsman: a Private Rented Sector Landlord Ombudsman is planned, but the implementation roadmap expects the requirement for landlords to join it in 2028. Until then, a complaint that says you must respond under an ombudsman's rules may be mistaken.
A clear, prompt and evidence-based reply is usually the best way to stop a complaint escalating.
Keep a clear audit trail
Save your acknowledgement, evidence reviewed, actions taken and final response. If further correspondence follows, update the issue list rather than starting the review again from scratch.
A long complaint can feel intimidating, particularly when it contains many legal references. Breaking it down, checking the relevant records and responding with human judgement is more reliable than reacting to its length or tone. The goal is not to win an argument about AI; it is to understand the tenant’s concerns and deal with each supported issue fairly and carefully.