Are there additional primary residence requirements such as homeowners exemption required, or anyone know if this is coming down the line?

It really just depends on what types of travelers you're attracting to your units.

I'm applying for a HELOC on my rehabbed house in Detroit (primary).

Have never worked with them, but they respond professionally to everything posted about them here on BP and don't hide from it. 

This will save you tons of time on the job and minimize delays.

Also, consider connecting with local real estate meet-ups or online communities like this one!

There is no real estate involved; they are on a lease.My bank is currently looking at how much they can give us for a cash out refi of our rental condos, but we are trying to investigate all options.Thanks for any advice. 

Your $950/month on property B isn’t being “thrown away”.

Haven’t discussed pricing yet but probably won’t get as great of a deal on this one but it is a beautiful log cabin with big windows and fireplace overlooking the water.

We have a PM and communicate wiht them. when we did not have one long ago we did not have any app or anything. we had them pay online or mail a check and put $ in quickbooks and if there was an issue they would call or email us.