T.D.
Try Allette Williams on 610 south..I hired her so that I could get sole custody of my son. And I won, shes a good attorney, and I think she does monthly payments. You just post date the checks and she deposits them monthly(that was 5yr ago not sure about how her policies are now). Im not sure what affordable means to you, but it cost me around $3000 to get sole custody. Worth every penny!!!!
Good Luck