Hi Angela, no easy, safe way to move/transfer accounts. I mean it can be done (with a multi step process) but there is risk of losing reviews (because it will be a new CID) and also risk of losing ranking at least temporarily (possibly 6 weeks) as the new listing matures in the index.
Is it just that he is concerned giving you password? I'd just work on building trust in the relationship and assuring him you only will be logging into Places account.
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