L.N.
most of the time you do not need a lawyer. you can do everything by yourself. what status will your husband base his I-485 application, especially changing it from H1 visa? through marriage or through H1, which i assuming is not the case, if he is not doing it through his employer. if you guys are going through this and applying for green card through marriage, it is a very easy thing to do, i mean filling out paperwork. i honestly do not recommend using a lawyer, they cannot do anything more than you can, just charge you thousands for something that you can do by reading the instructions.
i am sorry i do not have any a lawyer recommendations, just wanted to tell you, i went through all the immigration process by myself, and never had a problem, as long as everything is done legally and presented with proof.