There are many different lawyers offering divorce services. Nowadays. many of them offer free consultation.
I think in the end, it comes down to how comfortable you are with the lawyer and if you can sense that he or she is really representing your services. One way is to call up a few that offers free consultation and compare.
I have had good experience with sgdivorcelawyer.com, they provide free phone consultation for you to clarify some doubts and to see what are the possible options. The lady that I have spoken to is very patient and understanding.