In 2009, when I bought my first rental property in Virginia that gets heavy use (4-6 adults), I bought a used white ice maker fridge for $300, a used front load washer and dryer pair for $700, used otr microwave for $100 and kept the existing old white dishwasher, oven, furnace, ac, hwh.

Over the years I became more and more involved with some of those people and as an adult started taking them to lunch to "pick their brain" (Not my favorite term but you get the point).One of these Gentlemen I have continued to meet with and give him updates on my business.

Do not risk your property by foregoing a background check for all adults who want rent from you whether its MTR or LTR

I worked for a company for 8 years in a home that was for developmentally disabled adult men.

Walk around the house naked to encourage adult children to not move back in.

Are you good at holding the line and holding other adults accountable? 

I am a RE agent and found a 20 bed licensed Adult foster care business listed on our MLS for sale a year ago.

Welcome to being an adult.

Ironically, you are violating fair housing if you reimburse her for the wall anchors because she has a child, but you wouldn't do the same for a 50-year old adult. 

Check lease, but it should say that all adults have to sign lease.