An initial property enquiry may need only contact information. Introduce document capture when it is justified for the rental process, and explain the purpose in your application.
For example, a property manager preparing a lease can request the relevant identity evidence, extract the supported fields and check the names against the contract draft. This keeps identity administration connected to a defined task.
Your software can apply different access and retention rules to enquiries, incomplete applications and signed tenancies. OCR integration should support those distinctions rather than create a permanent document collection by default.