And San Antonio is a finalist for the Space Force Command which will be announced in January 2021.

The best markets have a lot of buyers, and that activity forces cap rates down.Here are two articles that may help you:https://www.biggerpockets.com/...https://www.biggerpockets.com/...In response to your question about where to find the best markets:  You want to buy in places where people are moving TO, and avoid markets where people are moving FROM. 

Most investors in this area tend to gravitate towards Groton / New London so not a lot of eyes up that way.  

I also feel cashout-refi forces your monthly mortgage payment up for the future, regardless if you in a deal or not, so again not as much flexibility in my book. 

You basically have one of three choices:Manage the property as your normally would and just update the units after residents move outPush rents higher, to give some "encouragement" for people to move, but if they want to stay, they can at the higher rentNon-renew all your leases at the end of each lease, forcing the resident to move out so you can rehab the unit

A major development has been the hotel building boom which was a necessary requirement for convention tourism to return in force to the city.  

(I budgeted for this in my purchase price)So I see 2 options:1-replacing boiler and radiator:$59002-I thought of taking this opportunity to switch out the boiler only on first floor for a forced air unit, run the ductwork under first floor in basement, and use the first floor radiator upstairs. ( maybe I could sell the remaining ones on CL to recoup some money) I am waiting for an exact estimate but his first thought was in the area of $7000-$7500.

I consider it an oil play because oil will move the dollar price of your condo far more than the appreciation in peso terms of just the local supply and demand forces of the local market.  

Make sure the property is in good condition and marketable.Keeping a property and refinancing an interest only note in three or five years can backfire as you probably can't get rents high enough in that period to force appreciation at 125% of your purchase price, roughly as your future loan will require 25% +/- of equity to refinance it.

Will prevent brute force attacks and a lot of other things you may want to consider especially since you may get a lot of traffic that pass around sensitive data like housing info and such.