What happens to potence when a ghoul becomes embraced?
There’s cannon to suggest that the potence remains – consider the giovanni merit “proxy kissed”. Then again, if all vampires that spent time as a ghoul (and that’s probably a majority of them) had potence, that would be a lot of potence. In the game I run, I allow them to either keep potence, or exchange it for a clan discipline. Personally, I prefer the first option.