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No.That's the one word answer. Buyers are always allowed at their option, to pay vendors immediately in a finalize-early transaction
But having said that, we strongly advise against using FE for a transaction. Before you proceed down that unsafe path, please look a little closer at how simple it is at Absolem to use multisig escrow. If you've tried it at other markets and were confused or annoyed at the complicated procedures, take another look. We put a lot of effort into designing a safe, fully secure multisig escrow procedure that's effortless to use. The simple steps can be found on the Getting Started wiki page.
If you decide to use FE process for your purchase, please undestand that the market cannot and will not assist you to recover coins lost in an FE transaction. You have been warned.