It appears that Mark W. Crouch, LLC is a law firm in either Eatonton or Cumming, GA.  Googling shows him in both towns; although the GA Bar has him in Cumming, GA.  You do have the protection of the GA Bar for collection purposes. 

I have had to do this on occasion.  I checked the GA Bar website, and he is located in Cumming, GA.  The GA Bar may be contacted at:

Bar Headquarters
104 Marietta St. NW, Suite 100
Atlanta, Georgia 30303
(404) 527-8700
(800) 334-6865
FAX: (404) 527-8717

Good luck.  I have only had to do this twice, but both times, I was paid.

Donna