I appreciate your query regarding setting up an Escrow account in Quickbooks Online, scherwinco.
You can set this up as a liability or asset account, depending on how you want to post your records. Before proceeding, I would suggest consulting with your accountant so that they can guide you and advise you on the best type for your firm.
I am sharing this link that provides information on setting up and adding accounts to the Chart of accounts: Add an account to your chart of accounts in QuickBooks Online.
If you have other questions aside from setting up escrow, don't hesitate to add them below. The Community is here to assist.