Have your attorney do two things simultaneously: (1) draft a letter to the tenant called "notice of termination and demand to vacate" and (2) file an unlawful detainer suit seeking possession and, if possible, damages. 

They use Debt coverage formula and not DTI.

I knew she was dirty, but when I took possession after she moved out, I was in shock walking in the door. 

I own 6 units (SFR + Duplexes in 30032) NO DEBT!!!. 

As part of this, can someone share their thoughts on whether debt service (principal and interest payment) is considered a fixed expense?

**** SUPER IMPORTANT- how much cash do you need to keep retained as a buffer / failsafe to service your debt (if you are getting loans) in a worst case scenario

I am saddled with student loan debt but want to build wealth and gain financial freedom.

All you do is collect a check whether it's to pay off your debt and keep in your bank account..Some office buildings if it is occupied by one big tenant may have Absolute NNN where the tenant is responsible for tax insurance and maintenance as well as structure and roof membrane of building..I am not too familiar of Office Buildings in terms of force appreciation but Multi family apartments offer that strategy..Hope this helps Good luck

Hands down. 1) less fees 2)you don’t want to start the amortization clock over again with your property in which most of your payments are all going into interests when refinancing.3)once you pay down your debt with HELOC, your credit line is available again for more draws. 

Basically how do you help a motivated seller out of a bad situation where they free of the debt?