Might give them a box of cookies, see if they agree to that.Skilled negotiators can get an Eskimo to take a truck full of ice.Understand that any contract only guides the parties to an agreed transaction, if both are agreeable, I've done handshake deals, that may work.

I would not markup a service or product that's already at market rate.I do not believe all services should be included in the management fee simply because some properties require more time and resources to manage than others.

Since you are new to raal estate you may enjoy the Ultimate Free Beginners Guide

If you haven't yet, be sure to check out the The Ultimate Beginner's Guide to Real Estate Investing and The BiggerPockets Podcast.

Some other resources for you to check out:http://www.biggerpockets.com/renewsblog/2013/04/14/best-real-estate-books/

I have had aspirations to invest in real estate for a number of years now and have read various books and internet resources, but I have yet to jump in and make anything happen.

Be sure to check out the many useful resources on here.

I would recommend first reading The Ultimate Beginner's Guide I know you are not beginners but there's something in there for just about everyone.http://www.biggerpockets.com/real-estate-investingSecond, go the the BP Store and buy the two books by J Scott, The Book on Flipping Houses and The Book on Estimating Rehab Costs.

Of course, neither of these actions is legal, but if the buyer doesn't have the financial resources to hire a lawyer, there won't be much recourse against a shady seller.

BP is a great resource for info.