When my folks sold their home a number of years ago they got a low-ball offer and my Dad told his agent to tell their agent to tell his clients to go f themselves.
Was the property on the market 700 days?
I got a lowball when I sold my first house. The parents of the buyer couldn't believe Des Moines could have an actual real estate market.
It's all part of selling a home. Shoot low. See if the guy bites. In this case make dang sure you want to own the home long term or you'll be on the wrong end of a 700 day marketing time at some point.