I know of two responsible, reputable people who do property management. One is Peggy Kiousis who owns a company called Caribbean Dreams (not to be confused with the business of the same name in Sosua.) She is an American, for whatever that means. She manages properties within Seahorse Ranch, properties which rent for US$4,000 - $6,000 a week. We have used her to manage our villa when we are absent and we have also rented from her personally and for our friends. She is responsible and reliable. She will come immediately-even in the middle of the night- if there is any problem at all, and she does airport pickups. Her numbers are 809-903-0162 and 809-571-3350.
The second person I know-and I don't know the name of his business, is Jeff Zirbes. His wife is an American attorney who works for Juan Perduomo Century 21. In the US, he did corporate property management before moving here. Currently, he manages the new condo complex east of Cabarete, the Victorian. I don't have a phone number for him, but his wife's number is 809-256-7013.
If you call either Peggy or Jeff, you can tell them that Lindsey gave you their name and number.
Good luck!
Lindsey