his is a buy/hold property as an entry into multifamily.

This is good for building but bad from a competitive entry standpoint.  7. 

In my area a B class rental might be occupied by family with 2 wage earners each working full-time entry level jobs like warehouse workers.

The median home price is also very low nationwide which creates a low barrier to entry.

Secondary Markets Are ThrivingOmaha and San Antonio are two examples of secondary markets where the cost of entry is still reasonable.

My question is if she doesn't pay in 5 days, could I file a forcible entry detainer at the court ( We are in Macoupin County Illinois)?

Section 8 rentals are frequently located in extremely low barrier of entry markets, especially the single-family homes and small multi-family properties which I assume has also led to an influx of inventory.

If I had been tracking the assets via accounting, I would simply make a journal entry showing the LLC's assets and liabilities going to zero and transferring them to the Holding LLC or the LLC Members.

i don't know if you've owned any before (feel free to chime in with more info) but the costs of entry get understated. 

You're going to do very well at your entry point Don.I'll add this while I'm here, @Zach Lemaster has gone out of his way to make my wife and I feel very comfortable with our decision.