.$690k - $336k = $354kDown payment = $354k x 25% = $88.5kThe house looks like it was bought at $450k, so I am assuming that I will need to come up with around:$690k - $450k = $240k cash in addition to the down payment, Bringing the total to: $328.5k for cash to seller and as 25% down-payment based on the above.I hope I got all of the calculations correct, and honestly, the more I dive into it, the more I don't understand.

I'd love to see if anyone else has any additional tips on this topic!

Welcome to BP - this is a well explored topic here and understandable in a HCOL area as Boston.

Additionally, I am a General Contractor in the City of Chicago, and I help rehabilitate properties for my clients.

Additionally, there are small pockets and areas in Gwinnett that offer some flexibility for novice investors to enter the fix-and-flip game at lower prices with good profit potential.If you're interested in exploring these options further or need assistance in evaluating potential deals, feel free to DM me.

The addition of a Ground Fault Interrupter negates the need for a ground wire.

@Ryan Judy, I am not sure about the code and zoning restrictions in your jurisdiction, but from my experience on similar projects in NYC sprinklers were required among many other additions.

So in addition to pulling the money out and it’s return you may need to think about the cash flow logistics too. 

Then the remaining balance of $3250 can be paid out over the remaining five months of coverage at $650/Mo.My plan is to pitch this offer to my potential client with 2 months free of coverage and 2 free monthly visits included in our contract agreement, saving them an estimated $3000 or more in additional expenses.

In addition in virtually all markets the 1% rule no longer works at a reliable profit indicator at high LTV.