It is typical for the landlord to pay the broker's commission, which is a percentage of the total value of the lease (NNN excluded), however not for a simple option renewal. 

Thanks yeah it seems like the same but I am new at this so was curious at what others use or recommend in terms of percentages 

We've typically either structured them with a new LLC with a solid operating agreement laying out everyone's duties, contributions, percentage of risk, and percentage of profit.

Are the closing cost percentages the same for single family homes as they are for multi-family?

What does everyone find MTR expenses running as a percentage of monthly income?

Who is your sales person, who is doing the estimates, what percentage of estimates will lead to nothing.

I have also told him that we would split the renovation and whatever percentage of the renovation each of us pay, then we will retain that percent in equity depending on the increase in assessed value, post renovations.

… Profit, NOI, CF.What percentage of my initial investment will this investment return?

Take the resulting percentage and multiply it by your total tax obligation, then subtract this result from the Schedule E number you started with. 

I’ve thought about a million different models but the truth is even if they make sense in theory I’ve come to the conclusion they may be too convoluted to explain, so I will try to keep getting 2.5-3% and if I have to cut commission to gets deals done I’ll do that as well, but I think paying some percentage to sell a home is probably here to stay just possibly at a lower sometimes.