You do, from day one. Kando is added as a user to your Business Manager, Google Ads and analytics accounts. Kando does not open ad accounts in its own name and rent them back to clients.
That covers ad accounts and Business Manager, pixels and conversion API setup, tag manager containers, audiences and customer lists, creative source files and ad copy, landing pages built during the engagement, and dashboards and reporting templates. Playbooks, SOPs and optimisation rules transfer to your team at the transfer point.