Amanda, Joe is correct. Tip of the iceberg! Almost everyday there is a thread on Californian land lords fleeing to land lord friendly states. This is close to my heart, as well as your bigger cause. I own SFR homes and have a homeless family member. After thirty years, my mom still tears up over the issue. My cousin, has chosen a life of being homeless. With many family members and professionals attempting to get him off the street. Cant do it.
Im old enough to remember boarding or rooming houses. You know, maybe a dozen single bedroom, with a hot plate and one toilet down the hall. Turns out this business model is exactly what the lower income folks need. Once tenant rights were implemented, the land lord could not police them. Then they became a targets for not being humane to the tenants, and have for the most part, become a distant memory. I have read of new similar start up model, where four bed rooms surround a commons kitchen area. Unfortunately, it is for much better off, in high rent areas.
As stated above, and no secret, screen, screen and screen. I personally take pride in offering good, safe homes for reasonable price.
Great book on the subject. Evicted, by Mathew Desmond. A on the ground account of this topic.
Best of luck to you!