U.S. citizens visiting family in Cuba can do so without any prior approval or paperwork by selecting the Family Visits category when purchasing airline tickets online. 

U.S. citizens who were born in Cuba and left at a certain point should check their citizenship status with the Cuban government to ensure they won't have any issues entering. In addition to abiding by the U.S. laws related to Cuba travel, there may be specific requirements that the Cuban government has related to visas and documentation. 

In addition to using a local Cuban planner to help organize your trip, we recommend contacting Cuba Visa Services to ensure that you obtain the proper visa and any other paperwork.