Under federal law, a landlord MUST permit a residential tenant with a disability to make reasonable modifications to the premises only when the tenant

While a tenant may find it beneficial to have documentation from a physician to support their request for modifications, federal law does not require such proof as a condition for allowing reasonable modifications. The focus is on the need for accessibility rather than validation from a medical professional.

Federal law does not mandate that tenants obtain the landlord's approval or seek multiple contractor bids before making reasonable modifications. The law emphasizes the tenant's right to modify their space for accessibility, although they may choose to inform the landlord as a courtesy.

There is no requirement under federal law that a tenant must sign a lease for a specific duration, such as one year, to be allowed to make reasonable modifications. The right to modify is based on the tenant's need for accessibility rather than the length of their lease agreement.