I definitely have lots of room to learn and I am seeing some lingo that I don't recognize (though context clues might go a long way!).

@Ahmed Nijimif they tried to call the police mostly they are not going to negotiate cash for keys deal & not willing to leave...once they recognize there is an attorney involved they might to.If I were you I would never make any contact with them in any way...get an attorney to handle it properly...here in Texas there are many rules have to follow when giving the 3-days notice to vacate...cant just stick it on the door and thats it...Imagine if there is a screen door my attorney told me have to stick it from inside facing the main entrance door besides all of that to make sure they receive the notice had to have it sent with certified mail & regular mail...not mentioing how careful to be about what to write in that letter any mistake could be used against you if they wanted to fight the eviction.Have done both eviction and cash for keys here all depends on the first impression I get from the former owners.Cash deal was accompanied with short term lease for the period I gave them to leave waving any rights they might have to fight the posession...all docs were notorized.Hope that helps*Not giving any legal advice here.

But I wonder if there is actually research to suggest this is true, or any other information on the relevance of the DTI ratio today, and thoughts on other financial behaviors/factors that might skew it's accuracy (recognizing that this is just one factor that lenders use in their decision making, of course). 

With that much equity, you could definitely get some nice cash flow with appreciation to boot.I'm 55, work out hard, and eat well :)I recognized that my post wasn't a solid question, but I'm not necessarily looking for affirmation of my plan to sell. 

Maybe I'll even recognize some names!

We manage them ourselves and so far they have proven to be profitable and meet our lifestyle. 

They are different but both have processes proven to increase your business/wealth.

What has been proven to work?

How could that be proven?

Totally agree with @Natalie Schanne and @Morgan KleinGo with the agent that has already proven they can bring you deals.