Our Team

Haiko Cornelissen has extensive experience developing spiritual and community-focused real estate. As a Director of Real Estate at the Episcopal Diocese of Long Island, Mr. Cornelissen headed the Asset Management and Construction Management divisions. At the Diocese, he oversaw dozens of renovations and 20+ church development projects. The developments included affordable and senior housing as well as schools, offices, new churches, and parish halls. Mr. Cornelissen was also the Chief Operating Officer of Episcopal Real Estate Long Island, a corporation created for Episcopalian real estate developments.
He worships at St Mark’s Church in Jackson Heights where he has served on the Vestry for many years.

Dan Panitz has over 20 years of experience with community and faith-based real estate related projects. These involve joint ventures, leasing transactions, and acquisitions between religious institutions, himself, and third-party real estate investors.
As a Senior Asset Manager for the Episcopal Diocese of Long Island, Mr. Panitz gained vast experience working with clergy, trustees, Board members, and parishioners. Mr. Panitz managed 20+ development projects in the Long Island Diocese encompassing over 130 churches and has been involved in the development of church properties of other dioceses around the country.

Marty Piazzola has over 30 years of property development and real estate experience. Mr. Piazzola served as the Senior Vice President of Avalon Bay Communities and has directed the company’s development activities in the five boroughs of New York City and Long Island since 2011. Most recently, Mr. Piazzola spearheaded the acquisition, design, and development of Avalon Amityville, a planned development of 338 apartments. He also led Avalon’s two most recent development opportunities in New York City, near Columbus Circle with 172 condominium homes and 70,000 square feet of retail, and Avalon Brooklyn Bay in Sheepshead Bay with 180 apartment homes.

Prior to joining Stewardship Realty, Nathaniel H. Christian II served for nine years on Board of Trustees of the Presbytery of New York City; for three years as the chair of its property committee and most recently as Chair of the Board. As such he focused on the many real estate issues of the various churches including development, property management, and repositioning, all in the context of mission fulfillment. He also focused on dispute resolutions, empowering minorities and transitioning community development to more sustainable models focused on affordable housing.

Randy Valdez, an accomplished professional with a proven track record in property management and a genuine passion for real estate development, brings a distinct blend of expertise to the realm of faith-based real estate. With a keen understanding of the profound impact sacred spaces have on religious congregations, Mr. Valdez is driven by a heartfelt mission to create properties that transcend mere buildings, fostering environments that enrich the lives of worshippers and strengthen the fabric of religious institutions. Rooted in principles of compassion and community, Randy approaches each project with meticulous attention to detail and a commitment to delivering spaces that unite and inspire.