You have 30 days to register your car when you transfer your residency to Nevada. There are some exceptions. In your case, the tenant has received notices and has attended a hearing. If you have precisely followed your rules and regulations and your enforcement policies, the association would have the right to tow the vehicles.
Original article: https://www.reviewjournal.com/homes/homes-columns/barbara-holland/hoa-president-wants-to-tow-tenants-unregistered-vehicles-2611536/