If it's 4 units or less, they may use recently-sold properties as comps whose price-per-square-foot will be a bigger factor in valuing the property. 

Just throw a number out or by the foot or what?

I had someone that was going to manage one  3200 square-foot house  house for me near six flags and sea world area in San Antonio Texas.  

While living there,  the owner below would complain about all types of noise problems - foot steps, toilets flushing, vaccuming, etc.

It's govt, they'd lose a foot race with a glacier.Provoke them and they can f-up your life especially in places like development services.You may want to hire a runner (guys that take your permits thru the system), ask a developer and they should know some guys.

I made an offer on a 6/2 two-family (each 3/1) that has an unfinished attic with at least 7-8 foot ceiling.

This is generally less necessary if the property is only a few decades old, but if it's much older than that, an analysis which assumes these repairs will be on a much stronger footing.

Real estate is not a widget and wholesaling requires detailed knowledge (to be good at it), strong relationship skills, and analytics to make sure when you get your first deal, you don't shoot yourself in the foot by evaluating the entire property wrong.

This is a deal in Nashville: It is a 944 square foot home that needs EVERYTHING top to bottom.

Looking at a few deals that are complete tear downs in the northeast and I am curious what everyone is figuring for square foot costs on a new single family home excluding acquisitions?