If you didn't buy it "as-is," and your contract actually has a section for disclosing any known issues and they left it blank or said there were no known issues, then I'd sue them in small claims court without a lawyer. 

We've met on probably 4 or 5 different occasions, though each time I meet with him I have to reintroduce myself and remind him I'm the owner and then it clicks.

Your personal choice to enlist and serve in the military and the personal sacrifices you made for our country, while noble, are not relevant to the landlord-tenant relationship.Sure, the laws also prescribe a process for tenants to resolve grievances against their landlord, but in my experience (in Northeast Ohio) it is point-blank untrue that a city would ignore a single mother with a toddler who came to them saying she hasn't had proper working heat, gas is shut off to the property, there are gas leaks and no hot water, she can't bathe or cook for her child, etc.I certainly would not tell a judge that the tenant could have cleaned her toddler in a public restroom while there was no gas or hot water in the property I'm leasing her for 3+ days.

I took them down, built a base out of 2 x 4's, and made a little extra storage on a weird blank wall.

That has saved me money on numerous occasions as sometimes some unethical sellers have provided me fake leases or leases from several years ago stating that the tenant had automatically rolled into a month-to-month.

On one occasion she was going through an eviction and her lawyer mysteriously advised her to do it herself.

Simple, straight-forward, easy to understand by anybody contracts are the best.https://store.nolo.com/products/landlord-tenantHere are some calculators I found online that are really helpful to try to figure out if a property will be profitable:Rental income calculator:https://www.calculator.net/rental-property-calculator.htmlUse these to fill in some of the blanks in the above calculator:Tax calculatorhttps://smartasset.com/taxes/property-taxesResidential Rent Vacancy Rates:https://www.deptofnumbers.com/rent/This just helps learn about a market:livability comparisonhttps://www.areavibes.com/compare-results/?

I spent nearly 100% of my capital on multiple occasions to fund the next deal.

Meanwhile, I have had tenants with 800 plus credit scores who have been late on multiple occasions.

All our paperwork is from Wisconsin Legal blank, you can order online or go to their brick and mortar store downtown Milwaukee.