12 unit deal- please share your thoughts if deal or dud

[Anna Sam]

Hello Everyone

I am working on a deal and wanted to find out your thoughts on this deal - whether its a deal or dud.

how much down is the most to put in for a owner financed deal.

its a 12 unit deal condos Price is 425k   each unit  renting for $575 per month. 

seller wants 140k to carry for 7 years. 

pretax cashflow is $75/unit on a conservative analysis and a 10% cash on cash return.

Please share your thoughts on the deal. 

Thanks