Our Team

Arch boasts a diverse and experienced executive team with backgrounds in real estate, finance and development.

Our Team

Arch Companies’ executive team is comprised of a diverse pool of experienced real estate, financial and development professionals.

The combination of each team member’s individual backgrounds and expertise results in a dynamic, multifaceted and interdisciplinary approach to real estate investment that has withstood the test of multiple market cycles and shifting economic conditions

The team has executed numerous investment strategies including repositioning, rehabilitations and ground-up development projects. Collectively, the team has sourced, invested, and operated in excess of $2 billion of real estate across the United States.

Jeffrey Simpson

Managing Principal, Co-Founder
Member of the Executive Committee

Jeff co-founded Arch Companies and creates the strategic vision and manages all investment and development decisions. With a focus on multiple asset classes including multi-family, office, and development he has actively managed over $3 billion of real estate assets across the United States. His investments have included strategic repositioning, rehabilitations, and ground-up development projects. Given his active investment style, Jeff has led every part of the real estate lifecycle including acquisition, development, financing, marketing, lease up, operations and dispositions.

Earlier in his career, Jeff served as CEO of Greystone Development. Past professional experience also includes roles with Equity Office Properties and Jones Lang LaSalle. Jeff holds a B.S. in Engineering from the University of Delaware, as well as a M.S. in Real Estate Development and an Advanced Degree in Finance, both from NYU’s Shack Institute.

Jared Chassen

Principal, Co-Founder
Member of the Executive Committee

Jared co-founded Arch Companies. He oversees all operations and is instrumental in managing investor relations across the capital stack. He is well versed in all asset classes and has executed various deal structures including joint ventures, preferred equity, and mezzanine structuring. Involved in all aspects of deal profit realization, he leads multiple asset classes through conception, underwriting, project design, and leasing in major U.S. markets with a focus in New York and Miami.

Earlier in his career, Jared held an integral role at Greystone Development where he grew a team to manage marketing, acquisitions, and dispositions. His experience also includes years of development and construction management. Jared holds a M.S. in Real Estate Development, as well as a B.S. in Business Administration, from Nova Southern University.

Tristan Last

Partner, Managing Director
Member of the Executive Committee

Tristan’s responsibilities include structuring and negotiating acquisitions, raising capital (debt and equity), investment management, and undertaking new strategic initiatives at Arch Companies. She has a diverse real estate background that includes acquisitions, investment banking, brokerage, and urban planning. Over the course of her career, she has underwritten over $30 billion of assets across the U.S.

Tristan was previously the Director of Investments at Greystone Development and previously held various roles at Brookfield Financial, Health Care REIT and Wikstrom Economic & Planning Consultants. She holds a Master of Business Administration from Cornell University and an Honors Bachelors of Science degree in Urban Planning from the University of Utah where she graduated Summa Cum Laude.

Michelle Miller

Partner, Head of Acquisitions
Member of the Executive Committee

Michelle is the head of Acquisitions at Arch Companies. She is instrumental in structuring investments based on detailed market analysis and projected cash flows as well as developing asset level business plans. Michelle sources deals in strong markets through her ample knowledge of the national real estate landscape and leads significant negotiations with sellers, lenders, and partners. She originates and negotiates development opportunities and existing assets within the commercial office, retail, and multifamily sectors while leading a team that creates and updates detailed underwriting. In addition to leading the acquisition team, she identifies new joint venture partners that meet Arch’s criteria and creates relationships that will provide a consistent pipeline of suitable investment opportunities.

Earlier in her career, Michelle was a member of the investment team at Greystone Development. She received her MBA from the Kellogg School of Management with a focus on real estate and finance and holds a B.A. from Washington University in St. Louis.

Jason Paul

Partner, Head of Asset Management

Jason is the head of Arch Asset Management, a subsidiary of Arch Companies focused on asset management activities for Arch Companies and third-party real estate owners. He is actively involved in the development of each asset’s business plan and responsible for its execution post-closing. Jason’s expertise in real estate operations is instrumental to operational due diligence and profit realization. He has cultivated an extensive network of contractors, vendors, property managers, commercial tenants, and real estate professionals nationwide.

Earlier in his career, Jason was a partner at Sugar Hill Capital Partners and served as CEO of their property management company as well as CEO of their design and construction management arm, held a senior property management role at G-Way Management, LLC where he specialized on multi-family and mixed-use residential properties, and had over ten years of experience with a family real estate company. He also served as CEO of the design and construction management arm.

J.P. Rosenbaum

Partner, Head of Arch Development Florida

J.P. Rosenbaum is the head of Arch Development, a subsidiary of Arch Companies focused on overseeing development management in Florida for Arch Companies and third-party development and construction consulting services for real estate owners. J.P.’s diverse development and construction background is instrumental to his ability to execute on complex development sites. He has experience across a wide range of asset types, including ground-up high-rise multifamily, big box retail projects, and office and retail tenant build outs.

J.P. was previously Principal of PEBB Capital’s development and construction consulting vertical. Prior to PEBB, he was Vice President of Development at Greystone Development where he managed development and construction for all its ground-up multifamily assets in South Florida, totaling over 1 million square feet. He holds a Master of Science in Construction Management from New York University and a Bachelor of Arts in Communications from the University of Michigan.

Yechiel Lehrfield

Director of Accounting

Yechiel oversees Arch’s accounting department including both corporate level accounting and portfolio wide financial operations. He is responsible for overseeing financial reporting, budgeting, payroll, cash management, AR/AP, and loan draws for development and rehabilitation projects. He is continuously developing, implementing, and maintaining internal controls to ensure companywide compliance.

Prior to joining Arch, Yechiel served as financial controller at Lantree Development and Northwind Group, a real estate firm focused on value-add assets in Manhattan. Yechiel received his Bachelor’s degree from Farleigh Dickinson University with concentration in Finance/Accounting.  He also completed additional courses at Brooklyn College in business management and accounting to additional credits required for CPA licensure.

Gabie Sotereanos

Director of Construction

Gabie Sotereanos is the head of Construction of Arch Builders, a subsidiary of Arch Companies focused on construction and development management for Arch Companies. She is actively involved in the oversight of all stages of construction and has a comprehensive background in adaptive reuse, renovation, residential and commercial, and condominium and rental projects. Her diverse experience is instrumental in leading her teams across all projects in the Arch portfolio.

Gabie was previously with DNA Development involved in development, construction, and acquisitions and held various roles at Gilbane Building Company. She holds a Bachelor of Science in Civil and Environmental Engineering, with a structural focus, from Princeton University.

Karolina Bortko

Director of Human Resources

Karolina is the head of Human Resources focused on strategically supporting the firms continued national growth. She spearheads improvements to the firm’s talent recruiting and management, benefit programs, and company standards.

Karolina previously served as a Human Resource Specialist at Schroder Adveq Management providing a full range of departmental services for more than 300 employees.  Additionally, Karolina was a Human Resource Generalist at FlexTrade Systems where she started her career in HR. Karolina received her Bachelor’s degree in Arts Management from Long Island University and earned her professional HR certification from the Society for Human Resources Management.test