In setting up under The "my dogs" somehow my dogs got doubled and I can't seem to remove the duplicates, how can I edit (remove) them?

Go to each individual dog's page (click Edit button), then scroll down to near the bottom of the page. Under the blue Cancel link (under the green Save button) is the link for deleting -- Remove x's profile.

I suggest you call Rover Support at [Edit: Rover’s contact options have changed. Visit the Rover Help Center at https://support.rover.com/ to find the phone number, help articles, or chat with the team] to remove the duplicate entries since there appears to be no way to delete them yourself, only add and edit.