My issue is names removed from a contact lists keep reappearing for no reason. How can I insure names removed from a list stay removed?

Hello Dundo,

If your deleted contacts are coming back, check to see if they're currently synced somewhere. In the Contacts app, select Contacts up in the menu bar and then Accounts. If the Contacts app is currently synced somewhere, try turning the sync off for a few seconds and then back on. After doing that, try deleting a contact and see if it is still coming back.

Delete contacts in Contacts on Mac

If you have the contact added to a list, make sure it is removed from there before deleting it.

Delete lists and Smart Lists in Contacts on Mac

Cheers!