This is good advice. Even if things aren't along far enough to even talk about a sell price, choose some portion of money that you think of as a small slice of that likely sell price, and ask for it as a deposit... before diligence.
There's a chance that this will drive away a potential acquirer, who may indicate that they are horribly offended by such a request.
That is a good thing. A company offended by the request to put down a slice of the money up front (before they get to see all your private details in diligence!), is likely either just shopping for information, o to be a big pain later in the process. A company who haggles about the deposit but agrees to pay something, likely is a serious buyer with whom you can reach a mutually agreeable outcome.
There's a chance that this will drive away a potential acquirer, who may indicate that they are horribly offended by such a request.
That is a good thing. A company offended by the request to put down a slice of the money up front (before they get to see all your private details in diligence!), is likely either just shopping for information, o to be a big pain later in the process. A company who haggles about the deposit but agrees to pay something, likely is a serious buyer with whom you can reach a mutually agreeable outcome.