Agreed-- sounds fishy to me, too. I'm not a lawyer. I'm not a licensed real estate sales agent in my locality either, but I did complete a course of training to that end. I never heard such a thing. If a seller were discriminating against a protected class in refusing such an offer that would be illegal. Holding-out for a better offer (whatever that memans) however, AFAIK, the seller's prerogative so long as they're not discriminating against a protected class.