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Bulk would be good if you did not have all the problems you currently have.

The big flag I see is having listings out there with the wrong address #1 and also having an address showing when they are SAB's.

I would tackle them one by one since you clearly have unique issues with each profile.

I would budget about 2 hours of time for each, and work with Twitter support to get things cleared up (not phone support, unless they are USA based)

Miriam is dead on, I would like to add one other thing to consider. You can still be an owner, transfer primary ownership to the actual owner and that will leave you as an owner.

Another consideration, if for any reason your account was to become compromised (flagged as spammy for instance) then all your GMB listings would become suspended since you are the primary owner of all the listings. In the case of a soft suspension, you would have to reverify all your listings.