Some clients have unrealistic expectations of what their property is worth, and would rather it sit on the market than take a lower price.

That way of think has its law of diminishing returns now that I'm being accustomed to never meeting unrealistic goals.

Obviously these numbers aren't an example of an actual deal but not totally unrealistic. 

I don't like when clients are unrealistic and make low-ball offers unless I truly think they can get it for the "low-ball" price.

Unless you will be one of the client's top client, much of what you said is unrealistic. 

or is that unrealistic?

However, the problem is that their $500k estimate might not have been unrealistic.

I'm sure I missed something or provided unrealistic estimates.

I noticed that most Auction.com listings have a starting bid that is less than what is owed.Is this just a sales tactic, or in a single-bidder scenario (unrealistic) would the property actually be let go for such a low price?

Youd probably have to put an unrealistic option down.