Needs tips on presenting to an equity partner

[Mahonri Bussey]

I'm currently in the process of purchasing a 6 plex in utah, the owner is out of country and is wanting to sell off his properties, this deal is currently on the market for 330k but I am in the process of negotiating it for 300k and the gross monthly cash is $3425, after all expenses, the property is cash flowing at $1300 a month. I am working on making a presentation to investors that simple just want a an 8 to 10% return on their investment. I would like to do a 5 year loan, interest only with a cash out at the end or extension of the loan depending on the investors preference. I would like it to be as professional as possible, I have all the expenses laid out in an excel sheet with all calculations done for the mortgage, ROI, reserve calculator and a lot more things that quite frankly I'm not sure if they will care, but it's all there to show that after expenses I will be able to provide the return I am promising.  As always, thank you ahead of time.