Underwriting while raising capital

[Gabriel Ochoa]

Hey Y'all I'm trying to understand underwriting conservatively better how do I take investor's returns whenever I raise capital into consideration whenever I'm first analyzing a deal

A scenario that would clear this up would be 

$7000 Gross Monthly Rents 

500k Purchase Price

40K is needed to raise for this deal with my track record I'd be looking to pay 8%-12% interest in this deal. 

I'm trying to understand the math better. Thank you in Advance.