Tend to it and then teach your tenant how to prevent clogs in the first place.

The majority of people have little to negative net worth.Liability insurance is needed protection, but I also advocate properly managing your properties as the best prevention.

The previous owner installed a baseboard heater, which I turned to a medium setting (3 or 4 out of 7) throughout winter to prevent frozen pipes and other possible problems.

Currently the law is not being enforced but Jeff Sessions who will most likely be the next Attorney General has stated he does not support the Cole Memo which prevents the federal prosecution of most marijuana cases in states that allow the sale of marijuana. 

Current military systems prevent soldiers from learning how to "adult."

All cosmetic repairs or preventative maintenance should be approved by landlord regardless of the cost.  

It is a good feeling to have though because it prevents you from getting lazy or feeling like you know everything.  

So my step-mother thinks that it is as clean as it's going to get and that what remains are likely unremovable stains.  

Well, now it is only my lack of education and courage preventing my involvement.  

By doing this fourth choice you prevent yourself from using a 1031 (not an investment) and using 121 (since you don't meet the 24 month minimum ownership and residency).