Blitz Result: Database Owners <> SA
When databases are created, the owner defaults to whoever created it. This ownership gives the creator additional permissions, and this can be a problem in a locked-down secure environment where we need to honor the principle of least privilege.
This part of our SQL Server sp_Blitz script checks sys.databases looking at the owners. It was contributed by Ali Razeghi.
To Fix the Problem
If you want to make SA the owner on a database, run this T-SQL command:
ALTER AUTHORIZATION ON DATABASE::ReplaceThisWithYourDatabaseName to sa;
After the change, your server will be more secure – but users may be accustomed to doing things they no longer have permission to do. Check with the former database owner to make sure everything continues to work.