Hard to swallow our mistakes and keep grinding, but I love that you're trying to press through it!

One thing I always do when going separate ways with problem tenants is to inform them before move out that if they cause any damage I will not only keep the full security deposit but also send them to collections for every penny of damage, which will wreck their credit and limit their ability to rent an apartment ever again, and if the property is vandalized I will press criminal charges.

If you are pressed for time, and are unable to get this rectified by the closing, a credit may be applied, a dispensation can be signed and attached with a quote from a licensed professional, or money can be held in escrow until the work has been completed. 

Hopefully they punch me; then I can press assault charges.

I've gone to see the property and met with him, but didn't press on the issue. 

Once the sale closed, you accepted responsibility.Your tenant can legally press for this but most people are reasonable.

It looks like a money pit to bring them back to life, and the average income in Oak Cliff is a paltry 45k a year, so you'll be hard pressed to ask for $1700 a month (I noticed they just built tons - and are building tons more - brand new apartments left and right which I would think would depress the rent market for the older surrounding busted up homes).  

After a few searches of Realtor.com and Zillow, I was hard pressed to find any multi-families and nothing that appears to come close to the 1% rule. 

a quick google found a lot of negativite press on this place.

It is a lot more nerve wracking than pressing the buy button.