1.) Is it possible to manage over 200 business locations from one Google account?
2.) Can reviews from all locations be exported and sorted via locations in either a Google sheet or an excel spreadsheet?
Yes you can manage over 200 listings from one account. According to Google "there's no maximum limit for listings created from October 2017 onwards. You can create and own any number of listings created from October 2017 onwards."
There are a couple options for you depending on your scenario. For example you can do a bulk verification if you meet the requirements here.
New advertising option:
A review of your product or service posted by a Sterling Sky employee. This will also be shared on the Sterling Sky & LSF Twitter accounts, our Facebook group, LinkedIn, and both newsletters.