Are supplemential leases legal in FL after a lease agreement has been signed? Can a landlord refuse your rent payment for not signing a supplemential lease and evict you for non-payment of rent; does this constitute a non constructive eviction and would rent be due under these circumstances? If this is not a non constructive eviction please tell me what it is named by law.

It sounds like the landlord is trying to pull something illegal. He can evict you for non payment of rent.

If the landlord is refusing to accept payment of rent until you sign a supplement to a lease then the landlord will have a hard time trying to convince a judge that you should be evicted.

Send the landlord a letter by certified mail, return receipt requested, with a copy by regular mail. In the letter state that the landlord has refused to accept your rent payments and if the landlord continues to do so then you will pay your rent to the court. Start putting things in writing and creating paper so that you can eventually show a judge that you tried to pay your rent.

A lease is a binding contract. Once signed, no changes can be made to it without the approval of BOTH parties. This would be the case ANYWHERE in the US.

If the rent payments are being refused, put them in a separate account to show that you were prepared to pay. At least until the court decides to accept the as Lisa suggested.

What does this "supplemental" lease say? Why does the landlord want it?