Balanced Payments - Difference between Escrow accounts and (Marketplace) Merchant balances?
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I'm new to BP and was wondering if you could define what exactly an Escrow Account is, and what is the difference between that balance and the Marketplace Merchant balance? 

If I am the Marketplace owner person/organization, which represents me? Also, in what cases would my account have a negative balance?

Thanks for your time,

Robert