Not sure vampiric "law" cares about renters rights. And if it does, is it based on current laws in the country they are in, or the country of origin? And is it the origin of vampires themselves or just the vampire turned. And is it based on the time they were turned or modern laws?
Either way, in one instance I they bought it from the bank after missed mortage payments. So they weren't legally living there anyway but counted as last/current resident for the vampire since the bank isn't a person.
There is some C in the game as well:
https://web.archive.org/web/20201108105209/http://www.chrissawyergames.com/faq3.htm