Insurance will be mostly consistent in the region but varies widely nationally.

The range of cost of these services varies widely but I get that it all costs.

The World Wide Web is full of endless free content.

I ask, because the overall city-wide metrics may not be initially attractive to an investor, but a particular neighborhood/zip code within a larger metro area could be attractive...   

Also as far as a timeline goes, if the cost is not prohibitive and/or the issue isn't wide scale then I do not see the issue in leaving the tank until you are ready to sell like you mentioned.

Those all vary widely. 

I know there’s a wide range but what is the average invested to buy and rehab your house flips?

Go to tax lein auctions 1st Tuesday of ev month nation wide...anybody and ev body there...tons of contacts and folks buying property most do need help to flip...ck it out...call tax assessors office in your county...see https://www.pbfcm.com/taxsale.html

Then attached onto the back of that is about 225 deep by 50 wide.

MA and RI vary widely by region in cost and character.