Description on Zillow sounds like a wholesaler

[Ashley Wolfe]

Here is what I've found on Zillow for a property I found just today:

"This property is being offered as a principal-driven sale for his own account. Seller has equitable interest in property by virtue of a properly executed contract, [and may assign said contract to end buyer]. All bona fide offers will be seriously reviewed and evaluated. No offers will be accepted without proof of funds.)"

Is this common language in mobile home investing or is the person writing this description more like a wholesaler?  I don't understand the part where it says "principal-driven sale for his own account."  Can someone unpack this for me?