Is it obligatory for a girl afflicted with sorcery and a jinn عاشق (jinn in love) to inform her suitor of her condition, and when should that be?

A girl is not obligated to inform a suitor about being afflicted with magic (sihr) or jinn possession (mass), as this is a temporary condition that will disappear by Allah's will.

The defects that must be disclosed are those that prevent sexual intercourse or contagious and repulsive diseases.

The best cure for magic and jinn possession is to maintain the prescribed remembrances (adhkar) and ruqyah (Islamic incantations) with reliance upon Allah.