Looks like poor drainage in back of home may have caused water damage.

I think you'd have a tough time proving/defending that claim in court if the tenant challenged it since the damage is below the surface of the floor, combined with the lack of any "before" photos showing the condition before the tenant moved in. 

You’ll soon discover that the information you’re studying to pass your real estate exam doesn't even scratch the surface of all you need to learn to be a good real estate agent.

@Joseph Dike on the surface these numbers look great.

@Jesse KindraOn the surface, yes, your consulting work would qualify as a business capable of sponsoring a Solo 410k plan.  

I have been involved in the health and fitness industry for over 15 years and an increasing trend that I've noticed through literature and first hand experience is the surfacing of "specialty studios".

I spend a lot of time in the ocean and pay little to no attention to the many sharks lurking below the surface.  

Get a plumber opinion first as water/drainage can be a challenge.

You appear on the surface to be a lazy landlord.

All of the details although on the surface seem legit they are also very common stories related to professional tenants.