Change ownership is a process of transferring the ownership rights of something from one person, group, or entity to another. Here are a few synonyms for the phrase "change owners." Firstly, "transfer ownership" often denotes the legal process of moving ownership from one individual to another. Another synonymous phrase is "switch ownership," which implies changing ownership like flipping a switch. "Pass into new hands" emphasizes the transfer of ownership from one person to another. "Convert ownership" focuses more on the change itself and less on who the ownership is transferred to. Lastly, "hand over ownership" implies more of a voluntary transfer of ownership from one party to another.