Toll Brothers, the nation's largest builder of luxury homes, said this week 28 percent of customers canceled agreements in the fiscal quarter ended Jan. 31.

Toll Brothers, beset by customers walking away from agreements to buy new homes, said that one cancellation last month came from the daughter of co-founder and Vice Chairman Bruce Toll.

Wendy Topkis and her husband, Douglas, told the company last month that "they did not intend to make settlement" on a $2.5 million Florida condominium, according to a filing Friday with the U.S. Securities and Exchange Commission. Toll Brothers said the company "intends to pursue its rights" under the purchase agreement.

While the doom and gloom of the residential real estate market seems to have no end in sight, there is some good news for agents specializing in the high end side of the business. Check out these recent sales: