Appraisers are using MLS data and often it is lower than actual rents. 

You can always use a software like Turbo-Tax and follow the prompts.

This implies residential units can be built at lower costs and provide better return. 11) adding an ADU to SFH can make the SFH fall under rent control.

if it is a BRRRR you'd pay the seller off when you refinanced into long term debt, either conventional or DSCR.i don't know anything about the location, market, etc. but if it needs a 40K rehab, you need to push the purchase price even lower than 140K, or it will not work as a BRRRR. 

I'm starting out doing redeemable tax deeds and going to auctions where everybody has "bigger pockets" than I do.

Knows real estate tax write-offs and how I can best apply them!

You can use the "bad roof" or other problem to negotiate a lower purchase price. 

- The percentage difference is the percentage the taxes will go up after you buy it.What do you mean by the property has HVAC AND boilers? 

The numbers may be 30-40% lower than today's cost, but the process/approach to estimating may be good for you to review.

Many people get this confused thinking that is take-home (NET) income, when it should be BEFORE taxes GROSS income. 2.