If its a question of law, I think you can more or less anywhere. my problems with the idea are other ones.
how are you going to make money out of it, even enough to stay open? if you are going to charge people to get access to your books, then laws will probably change, and say you have to pay some kind of royalties.
To stand out from the other libraries you are obviously going to have to do something very different. its hard to compete with something that is free.
have you considered going digital with it? e-books rather than physical books. you could get rid of propert rental, and staff, and physical books. maybe a system where you offer the books online, to be read only from your site and not downloaded. you could use micro-fees and pay your royalties that way. i think something like that would be easier.