請問小白兔 and/or Pjiang, i-485 filing question

I got married after I filed I-485, and I’m leaving my current employer though my I-485 is still pending. My hu*****and would like to file I-485 while my PD become current again. Shall we talk with my previous company’s lawyer, who had been talking with me through HR and never contact directly, or I should find another lawyer. Any immigration lawyer that you can recommend? When shall we start the process? Thanks a million!