There are any many locations thoughout the DR that you can rent for less than $120 USD per day. The challenge that you are going to find it for locations that are "guest friendly".
If you are not looking for the plush type of accomodations, I would recommend that you take a location in Santo Domingo that is close to the Colonial Zone and the Malecon. Near the action of the Big Hotels and Casinos and where you can get some good food and dink when you are want it.
My recommendation would be to consider the Maision Gautreaux Hotel Guest House. There site is located at
Hotel Maison Gautreaux... En Santo Domingo, Algo Distinto.
The price is great, the location is great, and you just can't beat it for the price and convenience. I have stayed there many time and I know the owner very well. I would suggest that you send and email directly to the owner of the hotel at
jggm@maisongautreaux.net
good luck - feel free to PM me for any questions.
dave:cheeky: