Help with my offer structure

[Darian Gore]

Hello! I am currently in a great predicament and can't seem to figure it out. 

I have the option to attain 5 quadplexes that are currently generating $18,215/mo gross income with '0% down'. I have a lender willing to do up to 80% of the purchase price at 10.5% (bridge) interest only and roll in closing costs plus a seller willing to do seller financing around 3% for the remainder as my down payment. 

I'm looking for help from someone to craft my offer as we can't come to a reasonable price and still cashflow. Please feel free to DM or comment!