Write down every asset a new owner needs to keep the business operating: repositories, domains, cloud accounts, payment processors, analytics, support tools, trademarks, content, contracts, and vendor relationships. Note the legal owner, renewal date, transfer method, and whether a third party must approve the change.
This inventory often surfaces dependencies that are invisible during normal operation. A domain registered to a personal account, a production secret held only on one laptop, or an API plan that cannot be transferred can change the timing and structure of a deal.