We each have a different percentage of ownership within the LLC.  

A percentage of full market value based on local comps?

For condos at that price point, I'd suggest using the IRS Cost Seg Audit Techniques Guide as a baseline - it gives percentage ranges for different asset categories.

If you or anyone here can put close to $500 down and give me a certain percentage on a couple of deals you do I could give you access to the whole program. 

Obviously, if you are on the East or West coast, that percentage would be much higher, potentially 50% or more of the cost. 

Quote from @Adriana Lima: In today’s fast-moving markets, numbers are everywhere prices, percentages, growth rates and comparisons.

In other words, besides their disclosed management fee (a percentage off of the gross rent receipts it collects,) lease-up/renewal fees, is anyone who is/used to be a client of theirs aware of any other fees they may charge?

Yes, Jordan, the percentage can vary widely depending on many factors.

At the same time, reports point out that the best percentage returns are often in Midwest and Northeast markets, while some Southeast metros and parts of Georgia are leading in flip activity.​Given tighter margins and longer days to complete a project, how are you all adjusting?

Cash flow as percentage increases.