PM Fees and Bulk Discounts

[Chad Blessing]

Hello,

I'm working up a proposal to manage about 10 units...(8 duplex units + 2 other homes)...all in my area in NW Austin.  Average rent is about $1,300.  My normal fee for one unit is 8%.  Anyone out there have experience providing bulk discounts for a similar range of units?  If so, how did you structure your agreement?

Thanks!