Do I pay the landlord rent or the bank once the landlord files bankruptcy on his home?

You don't file bankruptcy on a home...

You either pay the bank or they take it. Its called foreclosure. Don't pay the taxes and the taxing entity will put a lien on it and seize it and auction it off at a tax sale.

Now if he filed a personal bankruptcy... and the home goes into foreclosure... you pay him until the actual foreclosure takes place... then you pay the bank, because until then its still his... and afterwards it isn't any longer.

Agreed, if the bank takes the home they will let you know what their intentions are so you pay them or prepare to move.

Agree, often you keep houses and property in bankruptcy, and there are various types of bankruptcy.

But as long as the owner owns it, you pay him, if and only if the house ownership changes do you stop paying him.