The simplest path forward is to request itemized bid from your contractors so you can see where they vary in cost. 

This year's taxes shouldn't be too hard, we don't itemize yet.

Lenders have the ability to add-back one time items on a return.I guess the follow-up question should be, should the renovation been deducted or capitalized on your return...

If the item is an unresolved material defect with the property then I would say yes they have to tell future offers.

@Christian Smith everything @Craig Curelop stated above is 100% accurate and you should implement those items.

The standard items like loan amount, interest, timing, the property, late fees/penalties, etc.

The home uses 2 natural gas heaters (dyna-glo 3000 BTu), house was built in 1950 (older homes used these gas heaters as a heat source in the area) and is in the upperclass area where newer homes have been built and continue to be built ( which newer homes have central heat) , I just had the appraisal come back to the lender is saying that “” Appraisal stated The heaters aren’t normal for the area this is a comparable item The subject property doesn’t exist the area and/or comps used” so the underwriter won’t approve the refi , what do you guys think my next move should be?

Assume 2000 sf of flooring. 2000 sf*$6 sf=$12000/10 year life span/12 months in a year=$100 per month for 1 item in a capex budget.

For a 20 unit building this would result in $150/unit/month that can be captured from utility companies for an annual cash flow of about $180,000 added to rentscurrently being charged, in addition to immediately added equity.This technology is also scalable and adaptable to automotive and trucking applications.

Get a knowledge base of what rehab costs are for the respective repair item - the more experience you get, the better you'll be at it.