Hi,
I will go through all of your referral traffic for the last year for each of the 7 websites and create filters to exclude this, i will also do the same for your hostname report. I will create a Main view that is filtered, a RAW view that is unfiltered traffic so you dont lose any data and a Test View that you can use to test
I have worked with Google Analytics for 2 years now and will be able to solve 90% of issues that i come across.
In the bid i will also spend 30 minutes doing a quick audit of the setup for all 7 sites to spot any small issues that might of occured