Anyway, off the legal talk, thanks Tony, Roger and Ghaag.
I have not thought about approaching the new owners, although I think they may be one of the sons, and current partners, of the firm. Not sure if he plans on keeping the property or will sell it for profit. It is in a very expensive part of Philly.
On top of that, I don't have the sale of prints incorporated into my business, so I would not know the ins and outs of making it work. I am far too busy with my commercial work to really devote effort to it as well.