As applied to 1031 exchanges, the most relevant exceptions that allow you to disregard FIRPTA include:You (the Buyer) are going to be using the property as your principal residence, and the fair market value is less than $300,000The Seller provides you with a Certificate of Non-Foreign Status (meaning that FIRPTA does not apply)If the foreign Seller obtains a FIRPTA Withholding Certificate by filing Form 8288-B.It is important to note that the foreign Seller cannot submit the Form 8288-B until there is a valid real estate contract.

Legal entities aren't qualified for conforming residential loans.

Surprised to find out that my area qualifies for a USADA loan -- a lot of benefits it almost seems too good to be true. 100 % financing and in Turner's book he said that it was an option -- but unsure if you can rent other rooms in a single family house (didn't get the impression you couldnt in Turner's book) but the USADA site says you cant rent out a rooms under a USADA loan "right away" -- whats the legal rule?  

If you want to target college students, October misses the mark as would the placement of medical residents. 

If it’s the taxable gain you are concerned about, you can temporarily defer that portion of the sale through 2026 by investing in a Qualified Opportunity Zone fund.  

I currently live in DC but am actively looking to purchase a single-family house in northern Virginia as a primary residence that can potentially be used for house hacking and/or a live-in flip.

However your situation becomes a trickier case study since these properties first served as your primary residence which could provide additional benefits form a tax perspective not available to an owner of investment real estate and nobody has a crystal ball and knows the property with certainty will transition into an investment property. 

Short term works best in vacation towns with few residents.

If they have other property (outside of a primary residence) then it could work out but you have zero equity protection and going in 2nd behind hard money provides all sorts of risks and issues, even if they allowed you to.

I've been at my job for only 6 months and know that's usually not enough to qualify for traditional financing.