Our Team

The Discovery Group, a family-owned and operated entity, has been a cornerstone in the real estate industry. Our team, made up of experienced and skilled professionals, is dedicated to applying their specialized knowledge and attention to every real estate investment. We pride ourselves on our personalized approach to property redevelopment and management, ensuring that each tenant receives individual attention tailored to their needs. At the heart of our success is our commitment to ‘unlocking opportunities one investment at a time,’ a philosophy that guides our every endeavor.

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Stefania Mardo


Stefania, a Bryant University alumna with a bachelor’s degree in accounting, has over three decades of expertise in financial accounting, real estate acquisitions, and risk management. As a Principal of The Discovery Group, she takes a lead on overseeing financial reporting, strategic planning, and ensures compliance across various disciplines. Committed to community service, she actively participates in annual fundraising initiatives for organizations such as Meals on Wheels, Rhode Island Food Bank, and the Special Olympics, among others.  

Jason Sisto headshot

Jason Sisto


Jason is a Principal of The Discovery Group, bringing extensive experience in the real estate industry since 1995. His expertise encompasses zoning, permitting, project management, property redevelopment, asset acquisition, and lease negotiations. A Babson College alumnus, he holds a bachelor’s degree in Real Estate, Finance, and Entrepreneurial Studies, further augmented by a Juris Doctor from Suffolk University Law School. As an active member of the International Council of Shopping Centers and various local business associations, Jason demonstrates a profound commitment to the industry. Additionally, he harbors a deep passion for restoring and collecting classic automobiles, applying the same hands-on approach he employs in real estate.

Joe Mardo headshot

Joe Mardo


Joe, with over 30 years of experience in commercial real estate, is a Principal of The Discovery Group, Inc., where he primarily manages all leasing and property management activities while assisting in repositioning and new acquisitions. He holds a master’s degree in business administration from Suffolk University, is a certified Leasing Specialist (CLS), and holds a Real Estate Broker’s license in both Rhode Island and Massachusetts. Professionally, he is an active member of the International Council of Shopping Centers (ICSC). In the community, Joe contributes significantly, serving on the Board of Trustees, Finance Council, and Building Committee of The Wolf School in East Providence, RI. Additionally, he chairs the Board of Directors for the Thayer District Management Association (TSDMA) for the city of Providence.


Lisa Farland

Financial Manager

Lisa, the Financial Manager of the Discovery Group, plays a crucial role in upholding the company’s financial integrity. A Rhode Island College alumna, she is instrumental in preparing financial statements and tax returns. In her spare time, Lisa indulges in her passion for reading, which she finds both enjoyable and enriching.

Deb Paull

Financial Accountant

Deb has been an integral part of the company for over 15 years, where she handles financial accounting for all properties. She is responsible for managing all receivables and payables, ensuring smooth financial operations for each asset. In her time off, Deb enjoys time spent with her grandson and family.

Anastasia LeBrun

Accounting Assistant

Anastasia, a dedicated Financial Assistant at the Discovery Group, supports the financial managers with essential bookkeeping tasks. Her role includes providing administrative assistance to the accounting department, where she excels in maintaining records and generating reports. Outside of her financial career, Anastasia has a lifelong passion for martial arts, which she has been teaching for many years.

Chris Midon headshot

Chris Midon

Property Manager

Chris, a Northeastern University alum with a Bachelor’s degree in Business Administration, specializing in Finance and Information Systems Management, brings over 30 years of experience to his role at the Discovery Group. His extensive background in Sales, Leasing, Banking, and Real Estate, combined with licenses in RI and MA, enables him to manage a diverse real estate portfolio. Chris is also a member of key industry organizations like the ICSC and MLS. In his personal life, he enjoys an active lifestyle with hobbies like rowing, biking, and water sports. His commitment to the firm is reflected in his effective property management, ensuring the smooth operation and maintenance of various asset classes, tenant relations, and contributing significantly to the company’s bottom line.

Evelyn Mattzer

Office Administrator

Evelyn, an office administrator for The Discovery Group, expertly manages all contracts and ensures the efficient flow of both internal and external information. Her role is pivotal in supporting various areas of the company, including property management and finance. Outside of work, she enjoys crocheting, a relaxing hobby that showcases her artistic talents.

John Ferreira

Maintenance Supervisor