I have offered this advice many times, on this board and others. I feel that most timeshare lessors will allow you to end a timeshare without any penalty. After all, they are able to resell or rent that timeshare unit again in the future.
1. READ your original timeshare paperwork. If your timeshare terms and conditions are based in SXM it is very likely that you can simply walk away without paying additional fees. You may well attempt to sell your timeshare(s) but if that takes too long you might accrue more fees.
2. Some timeshare lessors will offer exit fees, transfer fees, and or return fees, all of which are not enforceable if they are not included in the original contract.
3. Some timeshare lessors will threaten to negatively impact your credit status if you walk away. This also is not enforceable and if they choose to post any negative item on your credit report you need only "dispute" this action and you will see it disappear in a month or two. "Dispute" of a submitted unpaid debt on a credit report requires the creditor to justify with valid documentation that listing.

In summary, the lack of governmental protection in SXM timeshares cuts both ways. While there is no control to limit maintenance and other "created" assessments for those that continue their timeshare(s), there are normally few if any additional costs that can be legally added to the original contract to exit a SXM timeshare.

Hope this information helps. Many timeshare lessees have unnecessarily paid when they did not have to only because they wanted to avoid any confrontation and or they believed invalid information provided to them. Some timeshare lessors will use this to their advantage.