Eichner’s Madison Square Park saga enters final act

The saga of Ian Bruce Eichner’s Flatiron condo tower may finally be coming to a close. A nearly 6,000-square-foot duplex at 45 East 22nd Street hit the market last week at $20 million, or roughly $3,400 per square foot. The listing for the final unsold piece of the 83-unit Madison Square Park Tower comes after eight years of legal challenges, sluggish sales and lender drama at the development. Eichner previously lauded the project —which came