I'm in a residency type year w/ my career which means I'm only earning about 60% of what I should be making but that will be over by this time next year.

Residents bring rent to the onsite manager.

That might motivate them to fulfill a binding contract to sell to you.I can't imagine signing a purchase contract (esp if it was for a primary residence) in which the seller could simply cancel for a better offer. 

I know a few of my closet buddies I would not consider going into business with because of differences.

This was my primary residence and I sold the home to a friend at a very low interest rate, but a higher sales price than I would have been able to get with the house all torn up. $220,000 SP, $195,000 initial purchase price, $5,000 down.

They were both live-able and for our primary residences at the time so we used conventional financing.

If their car in a filthy freakin pig pen, it's likely their residence in the same, so..."

Mom was a Resident manager.

As mentioned it can cause parking issues and noise problems for the other residents.

Live in this house for a year or two and then turn this home into a rental, and purchase another primary residence.