Can you advertise and state that you will be ready to interview potential parents in your current home, but moving on July 1st and have pictures of your new home to show during an interview? You can tell them about the similarities and differences that there will be in your new setup, but you can tell them the kind of daycare you run and about your program, let them get to meet you, etc. It may work or it may not, but what have you got to lose?

Oops, I just read Reggio's comment, so I should have just said - I agree with Reggio, hehe.