I'm trying to gauge future supply forces affecting residential and/or commercial housing.

Max,The cold more likely shifted/torqued/sheared the fenestration in which the window is installed and it was this force which caused the glazing to crack.  

I'm an Air Force guy myself and have been investing since April.

For example, if the property got wiped out in a tornado, got foreclosed on, etc, and your tenant was forced to move out, you'd be liable to refund them any prepayments.

I can see the immediate value in the equity I could force and the improvements to cash flow potential.

For C class multifamily units, if the area allows for it, can be a very profitable and secure source of income.

Tenants who are forced to move could fill up other empty spaces, helping to chip away at overall vacancy and enabling landlords to charge more money for space."

All has been fun and rewarding on different levels but as the years have progressed, the equation of trading long hours for additional income has forced me to re-evaluate my investing strategies, principles and goals.I arrived at Bigger Pockets after kick-starting a personal goal to look at passive income investments streams a few months ago.  

@David ChowWelcome to the club, you've joined a large group of well capitalized & networked investors looking for C class buildings in B areas.  

You can consider forced appreciation but be very conservative. 1-4 units is NOT purely from an income approach.You don't pay points on an installment deal an equity funded note.I suggest you have a debt coverage ration of at least 1.5%, more is better (PITI, maintenance,  insurance and taxes being less than 1.5% of the income) Did I mention an attorney and a broker?