Hi, I specialize in Wordpress development & customization and I have been developing websites since 2007. I hold Master's in Computer Science from DePaul University, Chicago and have been doing web development with my small team ever since I left my job at CDW, Madison.
In these 9 years I have developed dozens of Multi-sites using Wordpress and I have worked with clients and companies including Sears, Target, punch stock, tire rack, NASDAQ and Harley Davidson.
I would love to share some references with you if you want and to start with I will need much more details that what you have mentioned.
However, for a standard Multi-site (upto 3) the above mentioned quote by me is perfect. However, we can discuss about your work in details over Skype or Phone call.
I will look forward to hearing back from you.
Regards,