Leadership

MANAGING PARTNER

As Managing Partner of Aventerra, Stephen Cassidy oversees the firm’s capital markets and fundraising operations as it expands and diversifies its $1.4B portfolio of assets under management. Over nearly two decades at Denholtz, he played a vital part in that firm’s transformation into a fully integrated commercial real estate asset manager.

Leveraging his financial acumen and deep knowledge of real estate capital markets, Stephen is instrumental in structuring capitalization packages for strategic acquisitions, repositioning efforts, and development projects. He also collaborates with the executive team to identify operational efficiencies that enhance the firm’s ability to capitalize on emerging investment opportunities nationwide.

He holds both a B.S. and an M.S. from Rutgers University and serves on the Advisory Board of the Rutgers Business School Center for Real Estate.

CHIEF EXECUTIVE OFFICER

Katie Kurtz is Chief Executive Officer of Aventerra, guiding the firm’s strategic direction and overseeing the initiatives that drive its growth and operational excellence. She leads major project execution efforts and manages acquisition and asset-management activities across the platform, while working closely with debt and equity partners to strengthen the company’s financial foundation. She stepped into the role after leading Denholtz as CEO.

Earlier in her career, Katie served as Co-Chief Investment Officer and Chief Financial Officer for Silverstein Properties. Her responsibilities spanned the firm’s portfolio of over $10B in commercial, residential and retail space as well as the development platform and lending business. Additionally, Katie has held leadership roles with AR Global (ARG), The Carlyle Group and New Mountain Finance Corporation.

Katie holds a B.S. in Accountancy, a B.A. in German and a M.S. in Accountancy from Wake Forest University.

EXECUTIVE VICE PRESIDENT, HEAD OF CAPITAL MARKETS

Jennifer McCool leads capital markets at Aventerra as Executive Vice President, overseeing capital formation and aligning financial strategy with the firm’s long-term growth objectives. She brings more than 20 years of legal, operational, and capital markets expertise, most recently as Head of Capital Markets at Denholtz.

Previously, Jennifer was Executive Vice President of Investment Management at Kushner, where she scaled the multifamily platform and built partnerships with institutional investors and family offices. She also served as Chief Operating Officer at WatermanCLARK, managing operations and investment committee execution at the firm’s launch.

Earlier, Jennifer spent over a decade at Related Companies, rising to Executive Vice President and Chief Legal Officer. She led corporate legal strategy, helped launch the firm’s opportunistic fund platform, and managed multi-billion-dollar capital deployment. She began her career as a senior associate in real estate at Schulte Roth & Zabel.

Recognized for her strategic vision, Jennifer has earned the CUCS Corporate Champion Award, the CREW Founders Award, and was named one of BisNOW’s Top 50 Influential Women in Real Estate.

She holds a J.D. from New York Law School and a B.S. in Business and Corporate Communications from the University of Delaware.

EXECUTIVE VICE PRESIDENT, FINANCE

Janet Kouvaras is Executive Vice President of Finance at Aventerra, responsible for the firm’s day-to-day financial operations and for maintaining fiscal discipline across every business function. She brings more than two decades of institutional finance experience, built over a long tenure at Denholtz that began in 2001.

Across that tenure, she has played a central role in managing financial strategy through periods of growth, portfolio expansion, and evolving market conditions. Her leadership spans budgeting, forecasting, reporting, and compliance, as well as collaboration with the executive team to support investment decision-making and strategic planning.

A licensed Certified Public Accountant, Janet is known for her precision, integrity, and operational insight.

Janet is a member of the American Institute of Certified Public Accountants and holds a B.S. in Accounting from Pace University.

SENIOR VICE PRESIDENT, CHIEF FINANCIAL OFFICER

Alexander Kotlyarevsky is Senior Vice President and Chief Financial Officer of Aventerra, overseeing financial strategy, capital planning, operations, and business intelligence to drive growth and performance. He brings more than 25 years of financial leadership, most recently as CFO of Denholtz.

He directs the firm’s accounting and financial operations, including forecasting, reporting, tax compliance, cash flow modeling, audits, and annual filings across more than 70 properties and entities.

Earlier in his career, Alexander held senior leadership roles at Community Realty Management Inc., Primer Developers & Concrete Systems, Intellego Capital Partners, Maxx Properties, and AR Global. He led capital raising and debt financing efforts, advised boards on strategic financial planning, and developed investment frameworks for high-volume M&A. His leadership was pivotal in major transactions, including the $2.6 billion sale of ARC Healthcare Trust and a $565 million credit facility for AR Global.

Alexander serves on multiple boards and is President of the New York City Chapter of Financial Executives International. He holds an MBA in Financial Management and Public Accounting from Pace University.

SENIOR VICE PRESIDENT, HEAD OF ACQUISITIONS

As Senior Vice President and Head of Acquisitions at Aventerra, Mark Mahasky leads the firm’s investment sourcing, underwriting, and transaction execution across its target markets, identifying and securing assets that align with its growth vision. He brings a strong foundation in capital markets and commercial real estate investment, honed as Head of Acquisitions at Denholtz.

Mark’s nearly decade of investment experience also includes roles at JLL, HFF, and Cushman & Wakefield. At JLL and HFF, he served as Director in the capital markets group, managing complex real estate transactions and advising on acquisitions and financing across asset classes. Earlier in his career, he gained hands-on investment sales experience as an associate and analyst.

Known for his market insight and deal execution capabilities, Mark combines financial acumen with strategic thinking to advance the firm’s acquisition goals. His collaborative leadership style and transaction expertise have contributed to the expansion of a diversified portfolio.

Mark holds a bachelor’s degree in Economics and Communications from Rutgers University.

SENIOR VICE PRESIDENT, HEAD OF ASSET MANAGEMENT

Warren Loy is Senior Vice President and Head of Asset Management at Aventerra, directing the strategic oversight and performance optimization of the firm’s national property portfolio. He brings over two decades of real estate asset and investment management experience, including his tenure leading asset management at Denholtz.

Warren served as Director of Asset Management at Lendlease, where he built the U.S. asset management platform and led operations for a $2.5B multifamily development pipeline. He also managed investor relations for a $1B institutional equity partnership and contributed to global Build-to-Rent strategies across the U.S., U.K., Italy, and Australia.

Earlier in his career, Warren held senior leadership roles at Related, overseeing a diverse portfolio of luxury multifamily assets across major U.S. markets including New York, Los Angeles, San Francisco, Boston, and Washington D.C. His responsibilities included directing teams of over 100 employees, managing high-profile capital improvement projects, and serving as the primary liaison to ownership and investment partners.

Today, Warren is focused on driving portfolio performance, optimizing operational efficiencies, and strengthening the firm’s institutional-grade management platform.

Warren holds a B.A. from City College of New York and completed advanced studies in Real Estate Finance at New York University.

SENIOR VICE PRESIDENT, HEAD OF MARKETING & INVESTOR RELATIONS

Christina Jordan is Senior Vice President and Head of Marketing & Investor Relations at Aventerra, leading the integrated platform behind the firm’s capital campaigns, leasing initiatives, and brand presence. She built that expertise over more than 15 years in real estate marketing, investor communications, and brand strategy, including a leadership tenure at Denholtz that began in 2010.

During that time she held multiple roles across leasing, marketing, and investor engagement, playing a pivotal part in rebranding the firm to support institutional growth, launching a direct-to-investor platform, and expanding outreach across wealth management channels. Today, she leads marketing strategy for over 2,000 multifamily units and a growing portfolio of commercial assets throughout the Southeast and Mid-Atlantic.

Christina is known for her strategic creativity, investor-focused messaging, and data-driven approach to marketing execution. She manages public relations and media partnerships, produces investor materials, and crafts compelling campaigns that align with the firm’s investment goals.

Christina holds a bachelor’s degree in Communications from Seton Hall University and completed further studies in Real Estate Development at Monmouth University.

LEADERSHIP

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