When you invest in a pre-construction sale, there are certain risks that come with it. You're trusting your money to the developer who will eventually build and deliver your property and title deed.
Hiring a real estate lawyer in the Dominican Republic to review and make sure the contract is solid is highly recommended. Your attorney will ensure that you are protected in case the project is not finished, developers declare bankruptcy, or if there's any other issue with their legal status.
Your real estate lawyer must also conduct a due diligence on the developer by checking licenses/permits etc., reviewing past projects completed by this company, before finally confirming if it is legit.