#vampire lore question

[galarian-slowdude]

Just thought - how do vampires and squaters work, if the vampire leave their home and someone takes over can they no longer enter their own home without permission?

[whattheheckisgravity]

I've seen things say vampires can't cross over running water, but nothing about them being able to drown, so would there be, in some bodies of water, underwater vampires?

[vampireadamooc]

Do fillings count as iron teeth?

{Edit for context: I was medicated after the dentist}