The average days on the market for median priced homes are less than half the 600K average DOM. 

The easiest and straight forward option would be, as you said, to sell the current residence, payoff the HELOC (or most of it) and then get back to saving with your jobs and the rental cashflow.

I'm only showing the lower half of the totals.

I've flipped several properties in Eastwood Hills East and surrounding neighborhoods, with about half selling to homeowner occupants and the other half sold to investors with tenants already in place.That said, the specific property you're considering is key.

All state said they cover cash value for properties built prior to 1940, drewlling comes out less than half of asking price.

Maybe learn about buying a duplex and living in one half and renting the other half out called a house hack.

The easiest way that I have found over the years is to simply ask other investors, specifically in your local market.

A couple options… 1) Coast as is until March for better selling season, more buyers, higher price. 2) Raise the rent at least half way to market.

We half-finished the basement, adding drywall, paint, and trim.

He would show up, realize he didn't like the view of the water tower half a block away and back out.- Getting under contract and then reducing the price because of findings is common, but major reductions are likely to tick off the seller unless you have strong justification.