Rented house was in foreclosure, landlord says it's taken care of.Does this sound right?

A few months back I received a notice that the house I am renting is in foreclosure. I talked to my landlord about it, and he said he had a couple other properties that were all part of it. He said it was just a way to try and get a tax break that actually screwed him a little. Then he said that he just had to pay some taxes, or something like that, and that it will be taken care of. My lease is up next month and I would like to stay in the house so I asked my landlord about the foreclosure and he said it is all taken care of and there is nothing to worry about. I have not received any more notices about this matter since the first time saying the house is in foreclosure so it seems like he is telling the truth. I don't know much on this subject and was wondering if I should be wary of what my landlord is saying, or if this actually sounds legit. Any information about how foreclosures work will be appreciated. I live in New York, if that makes a difference in the legality of it.