Agency/attorney recommendations sought

Hello -- I am a single woman in NYC who would like to adopt domestically. I am open to any race, but I do want to adopt a newborn. I am eager for it to happen relatively quickly, because I am 43. I went to Spence-Chapin initially. I then signed up with a small private agency that has just about completed my home study. I am not happy with them for a number of reasons, and am trying to figure out other options. I am open to an attorney adoption, but I would like to work with someone who is hooked into a network of birth parents, because I'm not up for being solely responsible for advertising and outreach. Any suggestions for places to contact? Many thanks in advance. (I am also cross-posting this on the Domestic Adoption and Single Parent boards)