Common mistakes include signing a tenancy agreement without checking the rent, notice terms, repair responsibilities and any fees, and failing to record the property's condition with dated photos. Keep copies of messages, rent payments and inspection reports, and check that your deposit is protected in an approved scheme where required. Do not simply withhold rent because repairs have not been completed, as this could put you in arrears; report problems in writing and seek advice. Rules differ across the UK, so check the relevant GOV.UK, Scottish, Welsh or Northern Irish guidance, or speak to a housing adviser or solicitor regulated by the SRA.