Just calculate the average price/sqft and use this, but this isn't good because some out of date also get sold, and the likesFinally, how closely do investors follow the 70% rule?

Paint/supplies might be $60 per room and I paint an average room in a couple hours.

. - Products & Services enable us to track each 'phase' of the rehab. - Projects give us visibility on my projects- My CPA can easily access the reports for tax preparation.

From what I’ve read in the Wall Street Journal, average rents in Providence are up about 15% over the last two years, which could work in your favor.

The interface is easy to work with, but they do require higher FICO scores for fix and flip products. 

Quote from @Jake Baker: @Andrew Syrios I looked at my last five flips to calculate the rehab cost overrun; the average was 15%.

Percentage is a rule of thumb, so whether you get a 100 a month or 1000 a month, your maintenance is going to average around a fixed number not a percentage of your rent.

I think your best approach is to pretend you are the investor yourself, calculate build cost (mortgage with interest) + Maint / cap expenses/ management fees according to your zoning and then compare that to the average rent in that neighborhood.

Are there any good resources online to be able to get an idea of average monthly/yearly expenses like utilities, etc. for a given zip or city?

Can anyone provide insight on the average cost of insurance for Airbnbs with pools in the Boston area?