I’m Mark Costanza, a licensed associate real estate broker and notary public serving Corning, NY, and the surrounding Corning and Horseheads area. Through Signature Properties, I bring a practical, service-focused approach to clients who need notary support, real estate services, or assistance connected to retail and community-facing needs.

My work is centered on being professional, approachable, and attentive to detail. Whether I am helping with a notarization or supporting a real estate-related matter, I aim to make the process clear and efficient while treating each client with respect.

• Notary public services
• Real estate services
• Retail-related support

I’m proud to serve clients in Corning and nearby Horseheads with dependable, friendly service.