Leaks can manifest themselves into ceiling damage, wall damage and mold which can have health implications. 

If she insists on staying, tell her she'll have to accept it as it is unless something major breaks that makes the home non-functional, endangers the health/safety of someone, or is causing further damage to the rental.

Then on top of that his wife was having some health issues and it just seemed providential that I came along at just that moment.We both came to the same price and then they decided they didn't really even want as much money down as I was offering- they didn't want the tax hit.  

A reduced exclusion is available to anyone who does not meet these requirements because of a change in place of employment, health or certain unforeseen circumstances.General CPAs usually fully understand the Section 121 exclusion since it isn't really a real estate investor specific rule as it generally applies to everyone.

The wireless solution is not working well - batteries dying too often and complains that the bells just don’t work.  

But his mental health is at issue.

@Joshua Tikal One more thing, the STL LRA list is a great resource to see the health of a section of the city.  

Are there any particular oil based options available, my preference is thermal heating as I find it optimal from a health and cost perspective.

Health and Success to you! 

AC filter, smoke detector batteries - do you change these yourself?