Hi Buer,
I'm SEM and Analytics specialist and have considerable experience in configuring analytics (classic and universal versions) for domain and subdomains.
I understand your business franchise model and guess how analytics could be configured to report traffic interests, trends and activities. I can configure analytics for: eCommerce, events, channels, social media, groups, goals, funnels, demography, geography, etc.
I'd suggest you a new option "Google Tagmanager" (if not there) to manage analytics and third-party tags smartly.
Please proceed ahead to discuss, plan and execute to achieve your business objectives.
Thanks,
Zahid