At this point that request for mentorship will be meaningful when you engage mutual self-interest.

You'll need an answer...make it meaningful.  

I quit my job, to focus on something more meaningful.

You gotta ask yourself, am I buying this to make some money and have a "jewel" property that I can feel good about having in my portfolio, or am I buying this because I believe I can extract the maximum value and dollar amount out of this 1.3 or 2.6 million?

This implies that you will not be able to extract the full $150K equity through a typical refinance. 

Also is there a method of extracting the equity from both properties in a single transaction?

I think knowing this ultimately helps you set meaningful goals, develop a plan of action and drive your overall success.  

Or would this for some reason not affect the value meaningfully?

It takes some work and some vision to see things that others miss because they aren't looking for it in this way, but you could pay retail and actually still make a profit by spotting and extracting this sort of hidden value.

. - you can manually extract this information from Zillow if you know how to slice it.