The Closer

For the first time ever, Corcoran Sunshine Marketing Group will hold a mass open house for almost all its developments at once, tomorrow and Sunday from 11 a.m. to 5 p.m. and Monday from 10 a.m. to 8 p.m. It offers a chance for buyers or real-estate lovers to check out some of the best properties in the city, including 56 Leonard from architects Herzog and de Meuron and be@schermerhorn in downtown Brooklyn, where apartments start as low as $325,000. To download a list of properties for the open house extravaganza, go to www.corcoransunshine.com