In summary, you should be able to edit the report to adjust these numbers, in particular the initial HML loan and estimated expenses and returns.

Once you're sure that the listing is getting views, then you can decide how to adjust the price or what incentives to offer.  

I do think bad data is better than no data, with regards to the Zestimate...My 'give them the benefit of the doubt' in their algorithm is that perhaps us folks that are interested enough to actually click on the 'Edit Facts' button (us) do correlate to being relevant to adjusting value - vs those that don't. 

Have the seller complete the repairs and adjust the purchase price back to it covers your reinvestment target.2.

Most credit score adjusters are waived for 15 year fixed mortgages so it is unlikely that a lower credit score would push rates that high. 

Adjust based on personal inspectionEstimated profit ~10% purchase price = $80,000Estimated Sale Price is based on comps. this house $1.15 - 1.2M1% closing costs both buy and sellhold for 120 days.

If you are looking for a PM for lower to medium priced rental properties I would start with Nimius; they have adjusted to those challanges.

Don’t worry, however, this is adjusted accordingly with comps (similar 2000sf GLA properties with a 1000sf basement are better than 3000sf GLA properties with no basement, for example).If the appraiser did get it that wrong, then you do have some options...

A blanket mortgage as@Wayne BrooksMentioned is going to limit you and the rates will most likely be higher and adjustable or have a balloon payment. 

Two of the common areas of concern for HELOCs I see out there is the 10 year maturity date and the adjustable rate.