Re: travel to haiti from dr/ good hotels in juan d
The only organized trips that I know of are organized from the north coast hotels and independent operators in Cabarete. If you check with your hotel upon arrival, though, they may have a two-day tour that goes to Haiti. It's much easier from the north coast, though. From Puerto Plata, Sosua or Cabarete you can get to Cap Haitian, stay at a nice hotel on a beautiful, mostly abandoned Haitian beach and see the Citadelle, which is a magnificent historic site perched high on a mountain. Of course seeing Haitian life is the most interesting part. If you go as part of one of these organized trips, it's really not dangerous at all. Cap Haitian on your own is a bit intimidating, though, and Port-au-Prince has a lot of both crime and political violence.
As to the second part, the hotels in Juan Dolio aren't as good as those at Punta Cana/Bavaro, but Talanquera is a very nice resort. There are one or two other good ones as well.