as 1000's of condominiums are and have been sold in DR, are there general bi-laws that are applicable to all condominums?
If you are thinking of buying a condo, you should read its rules. But no matter what they are, as was pointed out below, this is just one consideration. If the condo is not well administered then the rules won't be worth much. That is the case all to often in the DR.
An important consideration is the history of owners paying their maintenance fees and paying them on time. There are too many condominiums where a few or many don't pay their maintenance fees, putting a great burden on those who do.
When you review the rules, pay particular attention to the procedure for dealing with delinquent owners. Find out how many owners are delinquent and whether the procedures for collection are being enforced. Steer clear of any condominium that has fee collection problems no matter how much you might like a particular unit.
You may think that once there you can bring about improvements, but to make or eliminate or revise a rule requires approval by at least 75% of the total number of apartments. If there are 18 units, as in the condo where I live, it takes 14 "yes" votes. This is in the law and cannot be changed locally
Ask about the annual assembly. How many owners attend in person and how many give their proxy to the manager. I know from past experience that having a manager who has a number of proxies is not good news if you expect responsiveness from your administrator.