I received my Permanent Residency for residing in Belize in 1999. I was divorced and moved away a couple of years later.
Do not be surprised if your PR status is revoked and you are given a tourist visa. Although there is, apparently, no specific length of time one needs to be in country to maintain PR status, the information I received was "at least two weeks per year". Good chance the question will come up since the PR cards haven't been used in years and since replaced by stamps/permanent visas in passports.