This loan does not require verification of income or tax returns to qualify.

I constantly get offers around 100k, as-is.I'd like to know, is there any source I can go to to tap into my existing equity, and use these funds toward the overall rehab?

You want to be able to cut rates when you need to to maximize revenue in a down market, and a higher DSCR will allow you to do this … I.e., more “meat on the bone” is safer (meat = profit margin). 

But I'm going to to take a different approach and suggest you use neither as a whole.  

Combine that with the rest of the picture: employment verification, rental references, criminal/background check (look for active judgements from creditors).

Seems like it would be better to to to Salem than further out of state, except of course if there were other tax reasons to leave Oregon.

The fun thing about the internet is that you never know for sure who it is that you're talking to... at least not without further verification. 

If they are VERY professional, they will have their processes in writing as verification that it is enforced equally and fairly by their entire staff.6.

I'll also add that if it's just a few apartments zillow surprisingly works very well for resident screening (background checks, credit checks, employment verification) at no charge to you. 

From a practical stand point, and something you should do for everyone, ask for employment verification, references, past landlords, bank records, etc.