Cuban residency

Hi. I'm looking to get married in Cuba early next year, and I'm looking for hints and experiences in attaining residency. I know the government document requirements but want to know what works in attaining residency. I'm looking to invest in Cuba. Thanks for your help
Pete

Politics could be an issue as some governments have sanctions against Cuba, thus moving money there might be a problem.
Something to check out, especially if using US Dollars.