From there I can expand and continue to invest or pivot to hiring out agent stuff, and start having fun with investments. 

Not one penny was spent on any of that and continued to reinvest it. 

Lots of time and lots of continuous outreach.

The cash flow is okay, it's not great, but the principal pay down on this loan is over $10k per year, and this is a great location, so the property value and rental rate will continue to appreciate over time.

This price growth is largely driven by continued low inventory levels, which have kept competition high among buyers, even as average days on market have increased to 36 days​(Nest Realty)​(Garretts Realty).In Southern Indiana, activity is up with new listings growing by 8.2%, though sales have seen slight declines.

Personally if the trend continues, more people will move out and it will just become more and more deserted and need to be repurposed. 

Perhaps the question was posed in a way that the answer had to be "no that won't work", had he posed it like the above, "Can I have SEPP payments setup while collecting rent that goes back into the SDIRA and can I continue to sell stocks and purchase additional rentals while taking SEPP?"

If I can buy sub to, I can buy more properties and continue to build capital.

I also continue to market and show the apartment during this time up until a lease has been signed and all move-in fees are paid in full in guaranteed funds (cash or wire only).  

A recent study showed that 80 people are moving to this city every single week, which will continue to increase housing demand.