If you really like her and think they could be another great family, I would try to keep them. Really great families are hard to find! maybe you could explain to them that you are concerned about the large gap in the current and the time they need care. Tell them if they are interested, they will need to either make a down payment or pay X amount each week to reassure you they will still come at the end of your wait. Is there anyway they can start with a minimum due each week, now? and just bring their kid one day a week or part time? if they really want you you would think they would be willing to make a compromise? maybe this is a good chance to find out how respectful they will be and just how good of people they are. If I was happy to find a care provider but didnt need care for another 10 weeks but knew she could fill my spot if I didnt work on a payment of some kind to secure my spot, I would work something out, within reason. (from parents point of view though....I would NOT pay full just to hold the spot)