Can a section 8 tenant rent from a corporation owned by family?

[Steven C.]

My cousin is a sole-proprietor in an LLC that owns a multifamily property in Los Angeles, California. It turns out that the parents of the girl he was dating are his tenants through Section 8. After a few years together, my cousin and the daughter have decided to get married, however he is now afraid that this would mean his future in-laws will lose Section 8 status or be forced to move. Neither of his in-laws are disabled in any way. Does anyone know if my cousin's fear is legitimate? Or can his in-laws still retain their Section 8 status and their apartment with my cousin's LLC being the landlord?