The market has shifted a bit and going forward you will need to be buying "off market" to make any money.

It is easy to finance, easy to rent, and appreciates with the market.  

I was also able to get the seller to provide all new furnaces for the two sides.

I'd also recommend dumping the garages there's almost a total loss on that unless you are putting units above them on a dense infill lot for additional units it's not worth the cost of construction. build cost is pretty high for your market for three story suburban walk ups. we could never build at that price and make any money. suburban sells for 160k a door in our market with land. get on yardi make sure you Arne't going to lose money on it.

Assessing the seller's professionalism and sophistication is critical in deciding the level of detail required in this procedure.

It would be easier to try and convince the seller to increase their LTV to 75%.

FHA option has a lower down payment but I'll warn you that not many sellers even want an FHA offer in my experience.

Looking ahead to my next project, do you have any advice or resources for finding off market deals? 

They typically have below market interest rates and can be used for house hacking a 2-4 unit. 

It’s highly passive and there not much to do other than network and marketing.