Even at 280 it leaves you at $32k and after taxes brings you down in the low-mid 20's, with no hiccups.

I plan on selling it ($300,000) in mid-2025 after he graduates. 

It can be tricky to find groups on FF that need a 3-bedroom home on a mid-term basis. 

With middle 700 credit scores you can push your rate into the mid 6s today.

Using the mid-point of 8.82%, that would imply a value of approximately $515,031.

.$398 TCL 65" Class Q 4k QLED Google TV - https://www.walmart.com/ip/TCL-65-Class-Q-Class-4K-QLED-HDR-...This, I consider, as a upper mid grade TV.

Many people also rent out mid term or short term to increase their cash flow and rent by the room or unit if you buy a multi unit property.

In mid city south, rooms rent for $600-$750/month.

Area, tenant use, tenant credit (i.e. only Moody's BBB or better guarantor credit).There are a lot that can vary in NNN, just like any other real estate.You have market risks: FL has another hurricane coming, CA has earthquakes and wild fires, the midwest has anemic population growth.You have some location risk: is building on hard corner with signalized access or buried mid-block with no turn lane?  

Remember that now, mid-term rentals cater to much more than travel nurses and hospital personnel.