Have you already appeared in court & received the writ yet? 

I know here in TN it is taking a little while to get a court date so I do not know what it looks like in TX right now.

Have a tenant who won’t pay rent changed the locks won’t get out etc in the Philadelphia area courts super backed up any advice from someone familiar with Philadelphia area 

When it goes to court (and it will) and the judge finds out that you knew you were renting an illegal unit, you will have more to worry about than making a few bucks.Just my .02.

The lease I use is a mature document that has been improved every year over the last decades based on issues that came up, after every major court case in Wisconsin etc.

How about the call that the heater or AC is not functioning.  

If I'm reading this correctly, this is a serious mistake on your part and you could be sued for specific performance, meaning that a court will force you to honor the terms of the contract.  

You can take them to court and try to get the damages paid for. 

Anything I say, can and will be used against me in court. 

I invested in the renovations necessary to create an updated and more efficient, functional interior space.