The developer, real-estate agents and others routinely told prospective buyers that 70 percent of the units had been presold, creating the false impression that the condos were in high demand, according to the lawsuit, which was filed by attorneys Andrew Chirls and Lauren Cates, of Haines & Associates .
"The value of a unit . . . is higher if and when the developer has sold more units," the attorneys contend in the lawsuit.
When one buyer, Albert Hwa-Wei Tsai, closed on his condo in June 2009, only 38 percent of the 302-unit building had actually been sold, according to the lawsuit. That same month, Thomas Properties allowed 40 of the condos, situated at 21st and Market streets, to be auctioned.
Earlier this year, the Murano finally reached the long-discussed 70 percent sales figure, according to the lawsuit.
In addition to claims of inflated sales figures, some of the buyers suing Thomas Properties claim that the developer sold them on the idea that all of the condos would have floor-to-ceiling windows.
When, in some cases, that turned out to be false, the developer offered to move the buyers to condos with better views - and higher price tags, the lawsuit alleges.
The lawsuit is seeking damages in excess of $50,000.
Thomas Properties officials could not be reached for comment.