So your additional ~240 SF could be the foyer, hallway and bathroom spaces that are allocated by percentage to the unit.

Whether a flat fee or percentage, a PMC has an obligation to fill the unit with a qualified tenant. 

The PM rate in every area is different, in my experience, some are low percentage and low quality and then there are some that have high percentage and low quality.

Should it be a percentage of net profits, a fixed fee, or another structure?

Deduct NEW property taxes after you buyDeduct home insurance costsDeduct maintenance percentage, typically 10%Deduct vacancy+tenant nonperformance percentage(we recommend 5% for Class A, 10% Class B, 20% Class C, good luck with Class D)Deduct whatever dollar/percentage of cashflow you wantNow, what you have left over is the amount for debt service.Enter it into a mortgage calculator, with current interest rate for an investment property, to determine your maximum mortgage amount.Divide the mortgage amount by either 75% or 80%, depending on the required down payment percentage - this is your tentative price to offer.If the property needs repairs, you'll want to deduct 110%-120% of the estimated repairs from this amount.Be sure to also research the ARV and make sure it's 10-20% higher than your tentative purchase price.As long as the ARV checks out, this is the purchase price to offer.It is probably significantly below the asking price.

Quote from @Jokari Trueheart: HI, almost 11 months ago I purchased 3 duplexes and I borrowed the funds from my personal residence which I took out a equity agreement for the down payment on the investment property, great idea at the time because I have 10 years to pay it off and theres no payment requirement, but , I learned more about the consequence that it takes a large chunk of my equity the longer I take to pay it back, so my goal was to refi cash out the investment property to pay it back but I don't think theres enough equity yet to pull the full $106k needed, I only borrowed $88k but with the equity percentage for one year i'm paying about $18k in equity on top of the amount I borrowed if I pay it off in year one, so I need this paid off ASAP before it increases more.

I've tracked my metrics over the years and I'm getting 99% hit rates with fewer than 1% wrong number percentages.

This would be a joint venture with me offering to just provide a percentage of profits and equity in the property in return.  

My understanding of the capital gains exemption is that we would only be able to take a percentage  (12/20) of the $500K exemption once we live in it for another two years.  

I am looking to get a job doing this, but I am not sure what commission percentage I should ask for or if there is a regular commissions plan out there that everyone pays lead generators.Thank you for any information you can give me.Allan Guerra