I live in a 5 unit apartment building. The landlord was foreclosed on last year. We were notified via mail that a court order was given to a lawyer to take over as property manager. He did so for 4 months. He notified one of the tenants, and not the other 4, that he was no longer in charge and someone else would be taking over. That did not happen the last 3 months. Friday the realty company went under contract for it to be sold. Now the realty company is telling us we have to give them the last 3 months rent. The bank (which owns building until sold) has never once contacted us. Do not trust realty company. Do we just hold our rent until it's sold to protect ourselves? Was told realty companies don't collect rent that the bank should inform us what to do. Someone help please?

Yes you put the rental into an escrow account, until you get a court order showing you who is entitled to collect the rents

Agree, first you or someone can go to the "recorders office" or what office does deeds in your area and see who officially owns it. Seldom does a real estate company own it, unless they are also an investment company also. They often just work as the brokers for the owners.

Next I would require a documented letter from them that states they own the property and rent is to be paid to them. Next if they want back rent, paid to antoher group, provide reciepts proving that. If so, you may sue that group for the money back.