Rented to someone in the medical marihuana business?

[Maria G.]

I have an applicant who would move in with his 13-year-old son and whose other son (a UC Davis graduate) is going to move to a different region (two hours away). He mentioned that if things don't go well for his adult son, he may come join him later on. I know at that point he would need to fill an application, but there was one thing that concerned me (perhaps a prejudice?) and that is, that his son is in the marihuana business. The applicant seems really nice and he didn't need to share his son's business with me, so perhaps he doesn't think there is a problem with it, but I want to get advice from others.

I found posts on growing marihuana in rental's premises, but not just having someone in the business. Any experience?

Thank you!