I'm considering retiring in Vietnam and am wondering about visa options allowing a long term stay (hopefully without having to periodically leave and return to the country). From what I've read, renewing a short-term visa is a hassle and expensive, and can't be extended indefinitely. I've heard of the 5 year visa exemption, but it's unclear how to qualify for that option, and if it can be renewed indefinitely. I could work while I'm there for a university and/or do private consulting (over the internet, and likely for entities outside Vietnam) if needed for a business visa. However, I'm unsure if such work would qualify. If I were to marry a Vietnamese national, would I qualify for a permanent residency card? Or at least a 5 year visa? I've also heard of an investor visa. How much money is required to invest to qualify? Any help sorting through the options would be most appreciated!