My tenant currently has six people living in the property that has four bedrooms there are four adults and two children.

Who’s OutYouYour SpouseYour natural parents and/or your adoptive parentsYour natural grandparentsYour natural children and/or your adopted childrenThe spouses of your natural childrenAny fiduciary of your IRAAny people providing services to your IRA–such as your stockbroker–as well as his employees and both his and his employees’ blood relativesYour IRA custodian or administratorWho can the IRA make investments with?

There are MANY aging folks who live by themselves, either through choice or because a spouse/partner has passed away and any children involved do not live close enough to monitor their health needs so other options often need to be addressed; this is where a personal care home MAY come in.At any rate you might check your area for the requirements a personal care home must provide in regards to safety issues for its residents. 

Definitely have as many of the safety measures as possible.Make sure you have the correct STR insurance with pool coverage.Have in your rules more CYA things like Parents must monitor children under the age of X at all times around the pool etc.Vrbo allows for digital acknowledgement of your rules.

Unfortunately, Multifamily is rare and pricey in the Houston area - or in if it is affordable, it is in areas that aren't ideal for a house hack - What I am advising my children to do (they are in similar situations as you) is to buy single family and rent out a room while you are living there and then transition property number one into a full-time rental and move to your next single family house hack.  

Familial status has to do with children, not spouses or unmarried couples.

Probably to protect (financially) your wife and children should you die prematurely.

Water can be especially bad if people have children and fill lots of baths.

You need to clean house not house children.

Evict, repair, sell.If you're intent on keeping the house in IL, evict, repair, hire property manager, rent.I love my family and friends, but the only people I'm going broke for are my minor children.