Hey Josh, congrats-- sounds like you're making great REI decisions, thus far.Typically, with HELOCs, the interest rates are higher than what you could expect compared to a Cash-Out Refinance.

The caveat about investing right now is that that current prices really, really high compared to historic values (look at the inflation-adjusted Case-Schiller index).  

Or, you can ask the PM's how they vet, and compare that to the recommended routes.

In terms of whether the prices are too high or too low, the only way anyone can answer that question is comparing these prices to one or two other bids from other GCs.

Has anyone come across other sites that allow you to compare home price to rent prices across neighborhoods for a particular city?

This town is isolated from others and severely underpriced compared to it's west coast neighbors.

I had made a couple offers but lost and then my agent sent me one that looked great, was super low priced compared to comps and would rent for high.

It is just such a unique property because there isn't really a comparable property. 

We don’t know any PMCs to recommend in the area mentioned, but since selecting the wrong PMC is usually more harmful than selecting a bad tenant, you might want to read our series about “How to Screen a PMC Better than a Tenant”:https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processesWe recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

But what I have found to be the most comparable is looking directly on Airbnb itself.