Being houses don't, on average live as long as people, this variable, which is found wanting, will actually have a heavier weighting than the demographics variable.Overall, I think it is difficult to tell which direction things "should" be moving. 

If you have self-managing owner with no leases in place I don't know how much weight I'd put one whatever rent-roll they have to provide.  4.)

Any mentor worth their weight should have told you this up front.

Cut out all the dead weight. 

like I'm dead weight.

Although a majority of the weight is based on the property, credit does play a role.

Don't put too much weight on new home starts.  

The problem with the way you're running it is you are trying to run at a very fast pace while still carrying weights.

Maybe it is using a certain lender whose preapproval letter carries more weight than other lenders.

Ask them if they have a cap on the increase on property taxes per year.I have never heard an appraiser change a value on a property because of an anticipated tax bill, so although it is a very valid concern, it doesn't hold a lot of weight in your negotiation.