In episode 209 of Semantic Mastery's weekly Hump Day Hangouts, one viewer asked if one should use a unique Google account for each Google Search Console and Google Analytics property.
The exact question was:
Best practices for multiple GSC (and for that matter GA accounts) that we create for various clients. Is there any issue or danger in creating all the accounts from a master agency account OR should each GSC/GA account be created in a unique Google account then shared with the master agency account? (Or for that matter should they be kept entirely apart.) Matter at all?