I'm thinking about buying a used car and have some questions:

a) Do I need a Dominican driver's license if I'm here for 3-4 months at a time and have a US driver's license?
b) Does car insurance cover me if I don't have a Dominican DL?
c) Do I need a cedula - I think the answer is no.
d( what are the papers that are required?


What are any specific questions I must ask buying in a foreign country - I know the questions to ask about the car itself.

Thanks for any guidance.