But that is a huge percentage of tenants not paying rent.

When should the developer receive the percentage of ownership and how should the partnership be divided up initially, then throughout the course of development? 

The main motivation to use the MLS for comps while wholesaling.Is it legal to pay a real-estate agent for this privilege, either with a percentage of wholesale profits or with a flat rate?

A pipeline is always more valuable than a small commission percentage when the property is likely to be of low value on the front side of the transaction.When you are looking for a deal on the MLS, it can be difficult for things already on the market.

While taxes are a percentage, you are comparing cash flow from two properties to find the better one. 

I'd prefer a flat fee as opposed to a percentage, the properties I am looking to buy are in the circa 300k range! 

If you make 300 profit on a $1,000 a month rental, and your PM takes 10%... that’s 10% of $1,000, or $100... so you are giving up 1/3 of your profits for PM on a leveraged property.If your property is paid off it at least lowers the percentage because the profit level is higher on a free and clear property.., so the same $100 might be out of $700 profit... making the PM’s cut 1/7th of your property, or 14%.Randy 

However, in my research of the neighborhood the property is in, I found Trulia's "What locals say about (neighborhood)" in which features such as "Kids play outside" and "People would walk alone at night" get a percentage ranking I assume from crowdsourced voting. 

Should I do a percentage split instead of a set price, maybe a 60/40%?

Or charge each a percentage of the water bill per month as I do on my units.