Hello Shegiff- I don't really think that would help you any; if the selling bank were to also get your new mortgage on the place. It may be one big company, but the different departments of big banks don't really talk to eachother nor care what the other is doing for the most part. That's just my opinion.
The asset manager who is trying to unload the property will get paid the same whether or not you get a mortgage from their bank or from someone else.
But yes, as the others have said - this would all be public record. Just call the town assessor's office, or the country registry of deeds. They should be able to tell you over the phone.