No, but paying someone $300 is cheap when you hope to get a check for several hundred thousand in a few months. (even if the scam is only to get the earnest money that is still a $300 investment for the final thousand or two you make - with very little work)

That's a lot of work plus money transfer paper trail for something like this.

Presumably the money trail leeds to the Caymon islands or other country where they won't assist investigation.

The realtor might pay for it or even do it themselves. It would take 5 minutes with a reciprocating saw. Or the scammer tells the realtor "never mind that" and the realtor tells the buyer.