A habit of keeping rent receipts in apartment buildings

In the city many tenants pay rent by word of mouth and take no receipt. Later there are arguments about what was paid, with no proof. Everyone in the building agrees to take a simple receipt signed by the landlord whenever rent is paid. Put a sample, printed or handwritten, on the stairwell notice board. Keeping a phone photo of the receipt lowers the fear of losing it. You need a simple sample, one tenant to coordinate and a polite talk with the landlord. For serious disputes, take legal advice.