could you give us more information? Like, How many cats are we talking about? Are they neutered? Have they been tested and came out negative for FIV AND FeLV. these things will be important to a prospective foster home, especially if the home already has cats. In the mean time, you could contact any local shelters that may have foster homes available. Check www.petfinder.com to find organizations that are in an area you'd be willing to travel to.