This has recently gotten more complicated as I've added partnerships and am now dealing with K1s which necessitate accurate balance sheets.

However, I personally feel you should never really on someone else's numbers until you have worked with them long enough to know how accurate their information is.

@Nicholas Arthur Hogan  You could do rough estimates on the utilities, however, ideally you would want to call the gas/electric/water company and get historical costs for that specific property so you can be as accurate as possible. 

I'm attempting to find a accurate value for a 3/2 house that's was original listed for $410k to do a live in flip.

The area has a surprisingly high occupancy rate per AirDNA and that appears to be fairly accurate after confirming directly on AirBnB.

Just my best guess for you and probably nowhere near accurate.

sounds like you were good with the negotiation but not so much on due-dilligence, accurate assessment? 

Make sure the rents, taxes, etc they're stating are accurate to the market.

My main concern is finding accurate/appropriate data that helps me make a informed decision on a market.

How accurate is the $220 for operation cost?