If I were in your shoes, I'd start looking for the next flip.
You don't want to loose momentum and it is not like the moment you sell your house and start looking around for your next flip, you'll find one straight away. It can take weeks or months to find good deals depending on where you look for them. And remember closing dates are always up to negotiation.
In my view, there is zero harm in starting to look for your next deal.
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