You will have about 100 people on here recommending Guzman Ariza as they are the normal "go to" lawyers for first-time ex pat buyers. But I would also like to recommend an alternative, a guy called Stanley Peña who I have used several times having had less than good service from Guzman Ariza. His phone / whatsapp is +1 (829) 901-8806, he is based in Santo Domingo. He speaks good English, he's honest and very easy to communicate with and is a good real estate lawyer. I'd certainly get a quote from him to compare with Guzman Ariza.