@Kevin Fletcher and @Jeremy Baker the part of the equation that is missing from your discussion about Denver is appreciation.

Add the annual cost of window cleaning to your side of the equation and charge a slightly higher rent to cover it.

Overall, I thought it was an excellent article that earnestly attempted to show both sides of the equation.

A rental adjustment of $20 a month equates to $240 a year.

don't take it personally, and don't believe you have an approved offer until you have a contract in your possession in which the seller has signed on the line that is dotted. don't blame the realtor, he's just the messenger. if youre paranoid, become a realtor yourself to take him out of the equation.

4 other units are vacant because of foreclosure so it looks like those are not in the equation.

I left my closing costs in the equation.  

My agent feels an apples to apples comparison based on recent comps (in the building), adding the average CAF, would equate to this unit costing $714k.I know there are expenses missing and without seeing the leases, not sure when they're expiring or when the tenants need to give notice.

I don't have time or desire to deal with stress, so I leave landlording out of the equation.

I know that I will want to stay with low to moderate risk initially and the personal time investment equates to all as much as possible.