Any tips for renting a house or apartment when both husband and wife have VERY low credit scores?

At the moment, my husband and I are expecting and looking to rent a home or apt. in New York City. However, we have HORRIBLE credit and have become quite discouraged. We make over 100K combined, but just seem to get turned down left and right. It's becoming more stressful for us, with the baby due. Any advice on where to find a deal or on an approach to take??