There's conditions required for any housing, including housing one owns.

I do not think the requirements that SF allows its housing partners to impose are excessive (don't destroy the housing; don't deal drugs from the housing; don't continually create noise/waste/smells that adversely impact your neighbors).

SF also requires that nuisance evictions be conducted with plenty of warning and efforts by landlords and caseworkers to cure.. e.g.

> Nuisance evictions should include numerous incident reports, tenant complaints, prompt writeups and a “last ditch” tenant conference meeting with notes or a signed agreement.

And said tenants are entitled to due process after these numerous writeups and conference meetings, and legal assistance.