@Alex Sarnoff, I will add to others, that there is a lot that should be covered in the hypothetical and legal world of NNN (even if they are absolute) but in the real world doesn't work.Whether is be national tenants with NNN carveouts and caps or local tenants who simply can't afford any unforeseen increases to their NNNs, you will always run into something.  

@Kunal Lakhwani, have you thought about a co-management relationship with a local real estate agent to handle the tenant placement? 

Huntsville, Alabama, is rapidly emerging as a top real estate market in the South, driven by its growing population, strong economy, and affordable housing options.

But it's important to note that rental and retail figures are still ahead of 2019 levels.On the real estate front, prices are holding steady, though we’re seeing an increase in inventory.

Well a rep told me to take a line of credit to pay for the $20,000 education.

Your mention of using the solo(k) for down payments on real estate investments could end up being prohibited depending on the details and structure of the investments. 

I will be moving to the Northern Virginia/DC area in a couple of months and would love to meet investors from the area as well as a real estate agent, insurance broker and/or attorney familiar with LTR/STRs.

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

Just do not be surprised if the returns are not as high as you hear others get in real estate.

Start by reading the Ultimate Real Estate Investing Guide: https://www.biggerpockets.com/guides/ultimate-real-estate-investing-guide/introduction2.