I live in Sosua. The two principal realtors are Perdomo, which represents Century 21, and Bommarito, which represents Remax. A good person for you to contact is Dean Brown of Perdomo/Century 21, an American expatriate. You can reach him at
wandabrown@codetel.net.do.
We own a condo in El Neptuno. This should be one of the places you consider unless by property you mean you want to buy land. El Neptuno was built to American standards so that the condos are larger than those in other complexes. The neighborhood is very quiet, even though only 2 blocks from the center of town. Because of its location you can easily walk to all the services. We don't own a car and feel no need to own one.
If I can help in any other way, let me know.
Ken