Both markets have good, diverse economies.

And, even if I don't buy that building, I am planning to purchase more units.I have exhausted my resources buying my first 8 units.  

The market and economy dictates how this niche goes.

It is my belief that a reasonable person can expect Denver property values to appreciate at a rate of 5% or more for the next decade or so - we've got a great, booming economy and lot's of infrastructure being developed.That said, I believe that you are investing in the one asset class that I am skeptical of in terms of long term appreciation potential here in Denver - condos. 

UNLESS there is a dryer duct, stove duct, heat duct, or even furnace exhaust running through a joist cavity that is very drafty to the exterior.

Not sure about what welding gases might produce as "exhaust", but gas furnaces can definitely produce CO as a byproduct of combustion.

 @Elizabeth Colegrove  Is it smart to find a bank that does portfolio lending as well but first exhaust the conventional methods, build a reputation then work my way up to the lending managerOrFind any bank that will finance my first deal, try and repeat the process a few times and when I need a portfolio lender just start searching when I cross that bridge.

Put a big exhaust fan in the nearest window.  

My question is how can a city with a 30% poverty rate have an unemployment rate below that of Dallas Tx which has the best economy in the nation?

(I have two kids, a 4 year old girl and a 2 year old boy...fun but exhausting)I'm very happy I found this huge source of information and excited to learn more while hopefully make great connections!