If he took out a FHA loan on the OG Khan-dough, property taxes are built into your mortgage payment & placed in escrow, then paid on your behalf at the appropriate time.I'm too lazy to go back and check (and also just because DSP says something doesn't mean it's true; he has to lie to protect the family you know), but we do have records in another thread that he's at least paid the August property taxes. So DSP isn't a total moron. Whether or not he's still paying the mortgage I have no idea, but in my head, I have vague memories that he at least said that he wasn't paying it anymore.
I would say that the evidence that he paid the August property taxes means it's likely he is still paying the mortgage because they are both lumped together and DSP seems too lazy to figure out a way to pay the taxes separately.
Ergo, if A) it is a FHA loan; & B) public records reflect that his property taxes were paid in one fell swoop & not in chunks, then I'd say it's a safe assumption that he lied (omgnowairite?!) & never did stop making payments on Snort Fort Numero Uno.
Because you're absolutely right, he did say that he was officially shittin the bed on making payments on the CN place, & he definitely started blathering on about that after his wedding (though I can't be fucked to go find a link to him saying it, either.)