You can plug in your own numbers, the example just shows percentages.

Also, there are PM companies that charge a flat fee vs percentage. 

I have discussed various options with him including creating a coop (TIC - buying 4 plex but owning 25% or 50% and selling the other 59% or 75% for more than he invested on that percentage), house hacking, STR/MTR, rent by room, BRRRR (traditional rehab to create sweat equity).  

If you don't get a signed contract from the buyer stating that you are representing them and their interests in purchasing (typically with an agreed amount/percentage of compensation) then you are representing whoever the seller is of said property that the buyer is purchasing.  

Most of the time, lenders will only qualify a percentage of the rent towards your DTI.

McDonald's supplies the products and receives a percentage as royalty from the sales.This real estate model provides McDonald's with a stable, predictable revenue stream in the form of rent and royalty income from franchisees, while keeping operating costs low.McDonald's can leverage its market position to negotiate favorable real estate deals because it has control over the land and long-term leases

Sometimes they will cut you a percentage break for using them, but I still want even eyes working for me.4.

These were largely sourced pre-CV19, so eat the fish and spit out the bones.The DTI percentage range varies by lender, and is less than what you will find for an owner occupied property, due to lender risk.

I wonder if there are any stats to show what percentage of properties marketed with an assumable loan actually had the loan assumed?

This could be due to high demand, competitive pricing, or desirable location.The List to Sold Price Percentage is 97.2%, indicating that homes are typically selling close to their listing price.