Leadership
As seasoned real estate professionals, the actions and ideas of each and every one of us come together to create a team where the whole is truly greater than the sum of the parts.

Kenneth S. Horn, ESQ.

President & Founder
Bio

Kenneth S. Horn, ESQ.

President & Founder

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 & Founder

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
Bio

Joel Breitkopf

Principal

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 B’rith 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

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 B’rith 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. 


Blake Goodman

Co-founder/Operating Partner
Bio

Blake Goodman

Co-founder/Operating Partner

Blake Goodman has worked in New York real estate since 2006 and over that time has been involved in the acquisition, design, filing, and construction of over 1,750,000 square feet of residential and retail real estate. Since joining Alchemy in 2011, Blake has managed the design construction and development processes for 378 West End Ave, 35XV, Sackett Union, Griffin Court, Hudson Hill and 303 E 77th St Condominiums. Blake has specialized in the acquisition and construction management of ground up construction projects. Before joining Alchemy, Blake practiced architecture for five years in New York and Washington, DC. He received a Bachelor of Architecture degree from Cornell University and a M.S. in Real Estate Development from Columbia University.

Co-founder/Operating Partner

Blake Goodman has worked in New York real estate since 2006 and over that time has been involved in the acquisition, design, filing, and construction of over 1,750,000 square feet of residential and retail real estate. Since joining Alchemy in 2011, Blake has managed the design construction and development processes for 378 West End Ave, 35XV, Sackett Union, Griffin Court, Hudson Hill and 303 E 77th St Condominiums. Blake has specialized in the acquisition and construction management of ground up construction projects. Before joining Alchemy, Blake practiced architecture for five years in New York and Washington, DC. He received a Bachelor of Architecture degree from Cornell University and a M.S. in Real Estate Development from Columbia University.

Team

Jedd Horn

Director of Capital Markets
Bio

Jedd Horn

Director of Capital Markets

In 2019 Jedd Horn joined Alchemy Properties as Director of Capital Markets to oversee and manage the company’s investor base and source new equity and debt relationships.

Prior to joining Alchemy, Jedd worked at Cushman & Wakefield and Colliers International, focusing on retail leasing and sales. As a broker, Jedd completed significant transactions on behalf of both landlords, (The Durst Organization, Rose Associates, Union Investment, Harbor Group, the Port Authority of New York and New Jersey, UDR Inc.), and tenants, (GoHealth, Crunch Fitness, Zaro’s Bakery, JP Morgan Chase).

During his tenure with the company Jedd has facilitated financing for the recapitalization of 378 West End Avenue, the construction loan for 278 8th Avenue, as well as helping to source the capital stack in acquisitions throughout North Carolina, Wynwood, Miami and the Upper East Side of Manhattan.

A graduate with distinction from Indiana University’s School of Public Environmental Affairs, Jedd received a Certificate in Urban Studies and a Certificate in Real Estate Investment from the Schack Institute of Real Estate at NYU. He is a member of ICSC, REBNY, and the Urban Land Institute and served as Co-President of the Young Professionals’ Board for the Catalog for Giving.

Director of Capital Markets

In 2019 Jedd Horn joined Alchemy Properties as Director of Capital Markets to oversee and manage the company’s investor base and source new equity and debt relationships.

Prior to joining Alchemy, Jedd worked at Cushman & Wakefield and Colliers International, focusing on retail leasing and sales. As a broker, Jedd completed significant transactions on behalf of both landlords, (The Durst Organization, Rose Associates, Union Investment, Harbor Group, the Port Authority of New York and New Jersey, UDR Inc.), and tenants, (GoHealth, Crunch Fitness, Zaro’s Bakery, JP Morgan Chase).

During his tenure with the company Jedd has facilitated financing for the recapitalization of 378 West End Avenue, the construction loan for 278 8th Avenue, as well as helping to source the capital stack in acquisitions throughout North Carolina, Wynwood, Miami and the Upper East Side of Manhattan.

A graduate with distinction from Indiana University’s School of Public Environmental Affairs, Jedd received a Certificate in Urban Studies and a Certificate in Real Estate Investment from the Schack Institute of Real Estate at NYU. He is a member of ICSC, REBNY, and the Urban Land Institute and served as Co-President of the Young Professionals’ Board for the Catalog for Giving.

Benjamin Charles

Senior Acquisitions & Development Associate
Bio

Benjamin Charles

Senior Acquisitions & Development Associate

Benjamin Charles joined Alchemy Properties and Alchemy-ABR Investment Partners in 2017 and is involved in all aspects of the firm’s projects including, due diligence, underwriting, acquisitions and development. Prior to joining the company, as an undergraduate, Benjamin gained valuable experience in real estate and private equity as an intern at both The Witkoff Group and Mitsui Fudosan America, Inc. At Mitsui Fudosan America, Inc., Ben worked on various development projects including the acquisition and development of 50 Hudson Yards. Ben graduated with honors from New York University in 2017 with a concentration in real estate development and social entrepreneurship.

Senior Acquisitions & Development Associate

Benjamin Charles joined Alchemy Properties and Alchemy-ABR Investment Partners in 2017 and is involved in all aspects of the firm’s projects including, due diligence, underwriting, acquisitions and development. Prior to joining the company, as an undergraduate, Benjamin gained valuable experience in real estate and private equity as an intern at both The Witkoff Group and Mitsui Fudosan America, Inc. At Mitsui Fudosan America, Inc., Ben worked on various development projects including the acquisition and development of 50 Hudson Yards. Ben graduated with honors from New York University in 2017 with a concentration in real estate development and social entrepreneurship.

Lauren Mantia

Bio

Lauren Mantia

Lauren Mantia joined Alchemy Properties in 2005 and has more than 15 years of experience in residential real estate development. As Vice President of Design and Marketing she is involved in all aspects of Alchemy’s development projects with managerial responsibilities for pre-development, design, legal, sales, marketing and leasing.

Lauren has brought to market more than 1,000,000 square feet of real estate covering 14 projects in Manhattan and Brooklyn, including The Woolworth Tower Residences, Two Fifty West 81st, 35XV Condominium, The NOMA Condominium, Sackett Union Condominium, Griffin Court Condominium and 378 West End Avenue. Additionally, she oversees asset management, leasing and marketing for Alchemy-ABR’s investments.

Lauren is a graduate of Bucknell University with a B.A. in Economics and Biology. She is a licensed real estate salesperson in New York.

Lauren Mantia joined Alchemy Properties in 2005 and has more than 15 years of experience in residential real estate development. As Vice President of Design and Marketing she is involved in all aspects of Alchemy’s development projects with managerial responsibilities for pre-development, design, legal, sales, marketing and leasing.

Lauren has brought to market more than 1,000,000 square feet of real estate covering 14 projects in Manhattan and Brooklyn, including The Woolworth Tower Residences, Two Fifty West 81st, 35XV Condominium, The NOMA Condominium, Sackett Union Condominium, Griffin Court Condominium and 378 West End Avenue. Additionally, she oversees asset management, leasing and marketing for Alchemy-ABR’s investments.

Lauren is a graduate of Bucknell University with a B.A. in Economics and Biology. She is a licensed real estate salesperson in New York.

Ellen Vigilante

Director of Public Relations and Marketing
Bio

Ellen Vigilante

Director of Public Relations and Marketing

Ellen Vigilante joined Alchemy Properties in 2021 as Director of Public Relations and Marketing where she oversees the pubic relations, and assists on sales and marketing on projects such as The Woolworth Tower Residences and 378 West End Avenue.

Ellen has over 15 years of advertising and marketing experience in the real estate industry having worked at firms including Douglas Elliman and The Corcoran Group, as well as a boutique sized marketing consulting agency where she represented real estate clients. Before joining Alchemy Properties, Ellen was Marketing Manager at The Corcoran Group where she managed the accounts of Corcoran’s top grossing agents, that combined generated over $1 billion in annual sales. 

Ellen is a graduate of Montana State University with a B.S. in Business – Marketing and is a licensed real estate salesperson in New York. 

Director of Public Relations and Marketing

Ellen Vigilante joined Alchemy Properties in 2021 as Director of Public Relations and Marketing where she oversees the pubic relations, and assists on sales and marketing on projects such as The Woolworth Tower Residences and 378 West End Avenue.

Ellen has over 15 years of advertising and marketing experience in the real estate industry having worked at firms including Douglas Elliman and The Corcoran Group, as well as a boutique sized marketing consulting agency where she represented real estate clients. Before joining Alchemy Properties, Ellen was Marketing Manager at The Corcoran Group where she managed the accounts of Corcoran’s top grossing agents, that combined generated over $1 billion in annual sales. 

Ellen is a graduate of Montana State University with a B.S. in Business – Marketing and is a licensed real estate salesperson in New York. 

Brendan Vogt, RA

Assistant Development Project Manager
Bio

Brendan Vogt, RA

Assistant Development Project Manager

Brendan Vogt joined Alchemy Properties in 2021 and assists in all phases from pre-development through project completion. He is currently involved in the early stages of several projects in the New York metropolitan area and the Southeast. Prior to joining Alchemy Properties he was an architect at Foster + Partners, where he worked on the design and construction of a 3 million-square-foot office tower at Hudson Yards and a financial services headquarters on Park Avenue. His experience also includes ground-up residential condominium developments and conversions of historic properties. Brendan received his Master of Architecture from Columbia University and previously majored in Art History at McGill University. He is a registered architect in the State of New York.

Assistant Development Project Manager

Brendan Vogt joined Alchemy Properties in 2021 and assists in all phases from pre-development through project completion. He is currently involved in the early stages of several projects in the New York metropolitan area and the Southeast. Prior to joining Alchemy Properties he was an architect at Foster + Partners, where he worked on the design and construction of a 3 million-square-foot office tower at Hudson Yards and a financial services headquarters on Park Avenue. His experience also includes ground-up residential condominium developments and conversions of historic properties. Brendan received his Master of Architecture from Columbia University and previously majored in Art History at McGill University. He is a registered architect in the State of New York.