Wolper, Marcus Address: 400 Columbus Ave, Valhalla, NY 10595 Phone: (914) 741-2481 Hours: Mon: 8am-5pm Tue: 8am-5pm Wed: 8am-5pm Thu: 8am-5pm Fri: 8am-5pm Lawyers Other Businesses: Schachter Portnoy LLC at 500 Summit Lake Dr, Valhalla, NY 10595