My employer here provided a "gestor" (facilitator or fixer) to do that work for me, he made the appointments and went to the various offices with me and did the talking. Unless it's something very complex I can't imagine you'd need a real lawyer for that. You're welcome to PM me if you like, maybe give me some more details and I'll ask my facilitator if he wants a new client.
I just had a turno at immigration to renew my DNI. My lawyer did all the work, and an associate was there to handle the details. . You have to have a new picture taken and fingerprints.
Celano and Associates. They have a web page.