Nothing in Jamaica is "easy" (that actually could be a part of the allure) and that is especially true with anything to do with immigration. I haven't applied for a visa but I do have permanent residency and that wasn't easy. Just a lot of jumps to go through and a lot of requirements. The difficult part was "we require this and not that". It took three trips to MoBay and FedEx papers from Canada. That being said, there must be companies that do visa application as a business. With all the foreign workers here working at Princess Resorts and the MoBay By-pass some company(s) must be out there. My neighbours are from Mexico working on the Rio restoration. I'll ask around.