As i grow my portfolio, I anticipate either selling one of the properties or getting a property manager for both.

Are there other potential non-rehab/non-tenant pitfalls that result in a deal costing more money than anticipated or even the collapse of the deal itself? 

I was able to save enough to be comfortable with separating in the anticipation of learning a new skill-set, and I have the ability to still finance an investment in the 250k range comfortably (after researching for many hours how to obtain financing with no proof of income, only assets).

Flights are currently postponed/anticipated to start January 2019 due to the airlines offering more flights out of Paine field than they were originally approved for by the FAA.

We do not anticipate any major capital expenditures for this property right off the bat. 

See below bullet 3. https://www.irs.gov/irm/part55.12.5.2.7 (06-07-2016)Amount Necessary to Redeem Property In any case in which the United States redeems real property under 28 USC 2410 or IRC 7425, the amount to be paid for the redemption is the sum of allthe following: The actual amount paid by the purchaser at such saleInterest on the amount paid by the purchaser calculated at 6 percent per annum from the date of such sale until the anticipated redemption dateIf applicable, the amount of a payment made by the purchaser (or successor in interest) after the foreclosure sale to a holder of a lien senior to that foreclosedIf applicable, the amount equal to the expenses necessarily incurred in connection with such property after the sale but before redemption MINUS the income from such property and MINUS a reasonable rental value of such property (to the extent such property was used or allowed to be used by the purchaser)

I am an I.T guy.From that point of view...I would run a speed test from the areas that she complains have low connectivity.You could monitor channel traffic, and select a less used wifi channel.Another option would be to run a cable through the wall and create a wall jack for her tv.None are hugely expensive, I wouldn't happily pay for them as the property owner, but of it keeps the otherwise good tenant happy...eh.If you anticipate renting to more college students in the future, the wall jack may be a selling point for them.

I read a recent article by one of the very best Economist in the Real Estate Business that anticipated growth of 4 to 5 percent occurred in the second quarter.

This project has taken much longer than anticipated, but I think we will reach a positive outcome very soon, and I’m very much looking forward to getting this cash flow back. 

There are a few minor things I already know about (which I would expect to see on a report), but I don't anticipate any major problems--this is just a "due diligence" walk-through before releasing the deposit.