Section 8 question

[Jane Ho]

Newbie question, thank you for your patience in advance. I've heard on BP youtube that Section 8 tenants can be good and stable since it is paid by the government. My question is, how long of their qualification last....and what triggers they no longer qualify for section 8? I am worried when that happens, it will be a guaranteed eviction process...I googled searched...didn't find a certain answer. Thank you so much!!!