PRINCIPALS

Samuel Kooris

Principal/Co-founder
Bio

Samuel Kooris

Principal/Co-founder

Samuel Kooris co-founded Alchemy Ventures, an affiliate of Alchemy Properties, in 2014 and oversees its acquisitions, financing, asset management, investor relations, construction management, budgeting and office operations. Alchemy Ventures has been directly responsible for the acquisition, financing, and repositioning of over 50 buildings in New York City over the last 7 years. The portfolio is valued in excess of $400,000,000. Sam has recently expanded the Alchemy Ventures presence into Kansas City, MO where we have amassed a portfolio valued at $165,000,000. Prior to founding Alchemy Ventures, Sam worked at Rosewood Realty Group. At Rosewood, he was directly involved with brokering over $125,000,000 of multifamily and mixed-use real estate over a five year period. By valuing and analyzing properties, completing many transactions with different buyers and sellers, and learning the boroughs, Sam gained multi-faceted experience which has enabled the success of Alchemy Ventures to date. Sam graduated from Indiana University in Bloomington with a finance degree and holds his NYS Brokers License. Sam has completed NYU continuing education courses and is involved in RSA, CHIP, UJA, NYPEN and YJP. Sam lives in Brooklyn with his wife and two children.

Principal/Co-founder

Samuel Kooris co-founded Alchemy Ventures, an affiliate of Alchemy Properties, in 2014 and oversees its acquisitions, financing, asset management, investor relations, construction management, budgeting and office operations. Alchemy Ventures has been directly responsible for the acquisition, financing, and repositioning of over 50 buildings in New York City over the last 7 years. The portfolio is valued in excess of $400,000,000. Sam has recently expanded the Alchemy Ventures presence into Kansas City, MO where we have amassed a portfolio valued at $165,000,000. Prior to founding Alchemy Ventures, Sam worked at Rosewood Realty Group. At Rosewood, he was directly involved with brokering over $125,000,000 of multifamily and mixed-use real estate over a five year period. By valuing and analyzing properties, completing many transactions with different buyers and sellers, and learning the boroughs, Sam gained multi-faceted experience which has enabled the success of Alchemy Ventures to date. Sam graduated from Indiana University in Bloomington with a finance degree and holds his NYS Brokers License. Sam has completed NYU continuing education courses and is involved in RSA, CHIP, UJA, NYPEN and YJP. Sam lives in Brooklyn with his wife and two children.

Alexander Horn

Principal/Co-founder
Bio

Alexander Horn

Principal/Co-founder

Alexander Horn co-founded Alchemy Ventures in 2014 and oversees property management, tenant relations, field staff operations, building maintenance and leasing. Alchemy Ventures has been directly responsible for the acquisition, financing, and repositioning of over 500 apartments in 50 buildings in New York City over the last 7 years. Prior to founding Alchemy Ventures, Alexander worked in various roles throughout the real estate industry. Most recently he worked at First American Title Company as an Account Executive. Prior, Alexander was an investment sales broker with HPNY and CPEX Real Estate.
Alexander graduated from Hartwick College with a degree in English. Outside of the office Alexander is actively involved in New York Cares, a non-profit offering tutoring and mentoring for inner city youth.

Principal/Co-founder

Alexander Horn co-founded Alchemy Ventures in 2014 and oversees property management, tenant relations, field staff operations, building maintenance and leasing. Alchemy Ventures has been directly responsible for the acquisition, financing, and repositioning of over 500 apartments in 50 buildings in New York City over the last 7 years. Prior to founding Alchemy Ventures, Alexander worked in various roles throughout the real estate industry. Most recently he worked at First American Title Company as an Account Executive. Prior, Alexander was an investment sales broker with HPNY and CPEX Real Estate.
Alexander graduated from Hartwick College with a degree in English. Outside of the office Alexander is actively involved in New York Cares, a non-profit offering tutoring and mentoring for inner city youth.

James Rohrbach

Principal
Bio

James Rohrbach

Principal

James Rohrbach oversees the overall operations for Alchemy Ventures, leading a culture of excellence to achieve best-in-class returns. He also leads Alchemy’s equity relationships. James is a successful serial entrepreneur across several industries, having been the CEO, founder, or on the founding team of six prior ventures, with multiple successful exits. Most recently he co-founded a real estate investment and asset management firm that partnered with Alchemy Ventures to acquire and manage over $200 million of New York City multi-family properties. Based on that success he decided to join Alchemy itself. He began his career in the San Francisco office of McKinsey & Company, where he was on the founding team of the online services practice. He is a graduate Cum Laude of Yale University. Outside of the office he is an endurance athlete and advisor or Board member to arts organizations.

Principal

James Rohrbach oversees the overall operations for Alchemy Ventures, leading a culture of excellence to achieve best-in-class returns. He also leads Alchemy’s equity relationships. James is a successful serial entrepreneur across several industries, having been the CEO, founder, or on the founding team of six prior ventures, with multiple successful exits. Most recently he co-founded a real estate investment and asset management firm that partnered with Alchemy Ventures to acquire and manage over $200 million of New York City multi-family properties. Based on that success he decided to join Alchemy itself. He began his career in the San Francisco office of McKinsey & Company, where he was on the founding team of the online services practice. He is a graduate Cum Laude of Yale University. Outside of the office he is an endurance athlete and advisor or Board member to arts organizations.

Kenneth S. Horn, ESQ.

President of Alchemy Properties
Bio

Kenneth S. Horn, ESQ.

President of Alchemy Properties

Since founding Alchemy in 1990, Ken Horn has been actively involved in development and other aspects of real estate in the metro area.  At Alchemy, Ken has been directly responsible for the acquisition, strategic development, financing, construction, renovation, marketing, and conversion of over 3,000 apartments, including the ground-up or rehab of more than 30 residential and retail buildings in Manhattan, Brooklyn, and Queens. 

Having personally supervised more than $7 billion in real estate sales, his most notable acquisition to date is the condominium conversion of the tower floors of the Woolworth Building, an icon of the Lower Manhattan skyline and a designated national landmark.

He has lectured at the Yale University School of Architecture, the University of Pennsylvania, the Wharton Graduate School of Business and is a former professor at New York University’s Master’s Program in Real Estate.

A graduate of Brandeis University and the University of California, Hastings College of the Law, Ken is a member of the New York State Bar. He serves on the board of the Tenement Museum in New York City and is the former president and board member of The Catalog for Giving, a non-profit organization that distributes funds for after school programs to New York City school children. 

Ken resides in Manhattan with his wife, Marjorie, and has three children and five grandchildren.

President of Alchemy Properties

Since founding Alchemy in 1990, Ken Horn has been actively involved in development and other aspects of real estate in the metro area.  At Alchemy, Ken has been directly responsible for the acquisition, strategic development, financing, construction, renovation, marketing, and conversion of over 3,000 apartments, including the ground-up or rehab of more than 30 residential and retail buildings in Manhattan, Brooklyn, and Queens. 

Having personally supervised more than $7 billion in real estate sales, his most notable acquisition to date is the condominium conversion of the tower floors of the Woolworth Building, an icon of the Lower Manhattan skyline and a designated national landmark.

He has lectured at the Yale University School of Architecture, the University of Pennsylvania, the Wharton Graduate School of Business and is a former professor at New York University’s Master’s Program in Real Estate.

A graduate of Brandeis University and the University of California, Hastings College of the Law, Ken is a member of the New York State Bar. He serves on the board of the Tenement Museum in New York City and is the former president and board member of The Catalog for Giving, a non-profit organization that distributes funds for after school programs to New York City school children. 

Ken resides in Manhattan with his wife, Marjorie, and has three children and five grandchildren.

Joel Breitkopf

Principal of Alchemy Properties
Bio

Joel Breitkopf

Principal of Alchemy Properties

Joel Breitkopf, Principal of Alchemy Properties, has been in the real estate industry his entire professional career. Joel is involved in all aspects of Alchemy’s developments and investments including acquisition, finance, design, construction, marketing and strategic planning and is a principal of Alchemy – ABR Investment Partners which acquires existing commercial buildings in select major markets. He joined Alchemy in 1993. Previously, he was an executive at Commercial Bank of New York and was Vice President of Acquisitions and Finance for Himmel+Meringoff Properties. In this capacity he oversaw opportunistic acquisitions and structured bank workouts in the early 1990’s. Joel was also a real estate loan officer at Chemical Bank Realty and, prior to that, an analyst at LaSalle Partners, a national real estate advisor.

In 2013, Joel started a music therapy program for Veterans with PTSD, called Healing our Heroes, at the Music Conservatory of Westchester where he is now the President of the Board of Trustees. He was also President of B’Nai Brith Real Estate, and has been affiliated with numerous other industry groups and charities. Joel has financed well over $2 Billion in real estate transactions and has acquired over 3,500,000 square feet of real estate during his career. He has lectured at the Yale University School of Architecture, the University of Pennsylvania, the Wharton Graduate School of Business, Cornell University and has been an Adjunct Professor at New York University’s Master’s Program in Real Estate. Joel is a graduate of the University of Pennsylvania with a B.A. in economics. 


Principal of Alchemy Properties

Joel Breitkopf, Principal of Alchemy Properties, has been in the real estate industry his entire professional career. Joel is involved in all aspects of Alchemy’s developments and investments including acquisition, finance, design, construction, marketing and strategic planning and is a principal of Alchemy – ABR Investment Partners which acquires existing commercial buildings in select major markets. He joined Alchemy in 1993. Previously, he was an executive at Commercial Bank of New York and was Vice President of Acquisitions and Finance for Himmel+Meringoff Properties. In this capacity he oversaw opportunistic acquisitions and structured bank workouts in the early 1990’s. Joel was also a real estate loan officer at Chemical Bank Realty and, prior to that, an analyst at LaSalle Partners, a national real estate advisor.

In 2013, Joel started a music therapy program for Veterans with PTSD, called Healing our Heroes, at the Music Conservatory of Westchester where he is now the President of the Board of Trustees. He was also President of B’Nai Brith Real Estate, and has been affiliated with numerous other industry groups and charities. Joel has financed well over $2 Billion in real estate transactions and has acquired over 3,500,000 square feet of real estate during his career. He has lectured at the Yale University School of Architecture, the University of Pennsylvania, the Wharton Graduate School of Business, Cornell University and has been an Adjunct Professor at New York University’s Master’s Program in Real Estate. Joel is a graduate of the University of Pennsylvania with a B.A. in economics. 


CORPORATE STAFF

Christian Malota

Property Manager
Bio

Christian Malota

Property Manager

Christian Malota joined Alchemy Ventures as their Property Manager in 2021 and oversees leasing, tenant relations and building operations for the Brooklyn portfolio. Christian graduated from Sacred Heart University in 2015 with a degree in Finance. Previously, Christian worked for a large management company located in the Bronx. Christian is extremely knowledgeable in all areas of property management and works closely with new building acquisitions.

 

Property Manager

Christian Malota joined Alchemy Ventures as their Property Manager in 2021 and oversees leasing, tenant relations and building operations for the Brooklyn portfolio. Christian graduated from Sacred Heart University in 2015 with a degree in Finance. Previously, Christian worked for a large management company located in the Bronx. Christian is extremely knowledgeable in all areas of property management and works closely with new building acquisitions.

 

Michael Sturman

Aquisitions Associate
Bio

Michael Sturman

Aquisitions Associate

Michael Sturman joined Alchemy Ventures in 2023 and is involved in all aspects of the firm’s projects including acquisitions, capital markets, due diligence, and asset management. Prior to joining the company, Michael was a Vice President at OceanFirst Bank, where he originated and structured over $320,000,000 in real estate loans. Michael graduated from Syracuse University in 2016, with a concentration in finance and real estate.

Aquisitions Associate

Michael Sturman joined Alchemy Ventures in 2023 and is involved in all aspects of the firm’s projects including acquisitions, capital markets, due diligence, and asset management. Prior to joining the company, Michael was a Vice President at OceanFirst Bank, where he originated and structured over $320,000,000 in real estate loans. Michael graduated from Syracuse University in 2016, with a concentration in finance and real estate.