I believe that before anyone becomes a landlord, they should be required to attend training on what their responsibilities are.
I talk to people every day who are seeking housing because their landlord is evicting them. These usually are not legal evictions, but notes left on doors, utilities turned off, lockouts or putting tenant's items on the street. There is a legal process that landlords are supposed to abide by, but without tenants knowing this, landlords can do what they please.
Recently, a family member and her husband saw a for rent sign in a window. They talked to the landlord and went on a tour of the property. He told her he had some repairs to do but if they wanted it, it was theirs. She called him the very next day and told him she did want the house. She was told she did not need a deposit, and that the house would be hers when he finished repairs.