Never traveled internationally outside of Mexico (it's right next to San Diego)I don't know because I have never stayed there. But each hotel has its policy on the website. Sometimes they charge a fee for you to have a local guest. Read the website policy. It is there. However, don't think that if you book a double room you can have a different guest whenever you want. All guests must be registered. Dominicans carry a cedula.
Have you travelled internationally before? May I ask your general age? What about budget and length of visit?
If you want us style luxury the Sheraton and crowne plaza fit the bill. They won't bat an eyelash about two guys sharing a room. But they also know what's up.
It may also be of interest to you that you will find many other African American travelers. And, for some reason many of the gay guys are African American. To me it is a striking proportion.
My age mid 20's but well educated African-American with a MA
Budget I plan on spending at least $700 US max(not including hotel) since I won't be there too long
I plan on staying for 3 nights