DETERMINATION. PERSISTENCE. DISCIPLINE. FOCUS. PASSION.

These attributes are crucial building blocks for a professional athlete.

Since 1983, we have applied these principles to our management approach, helping our clients attain their professional and private goals.

As you begin your professional career, you will be called on to make critical choices that will impact your life. Contract negotiations, investment strategies, marketing opportunities, and life and skill development will challenge you at each phase of your career. At Cornerstone Management, we have the experience and expertise to help you skillfully meet these challenges. Because we understand the unique nature of your career, you will be able to make informed decisions that are in your best interest and consistent with your personal goals.

As a member of the Cornerstone family, you are the boss. Our knowledgeable, resourceful, and respectful staff will work for you. Excellent communication, personal service, and individual attention are the lifeblood of a successful client-agent relationship and will always be our priority – no matter where your career may take you.

At Cornerstone Management, our commitment to the client is unconditional. We will provide honest service and support that will allow you to maximize your potential.

Depend on people who share your commitment to success.

DETERMINATION.

PERSISTENCE.

DISCIPLINE.

FOCUS.

PASSION.

These attributes are crucial building blocks for a professional athlete.

Since 1983, we have applied these principles to our management approach, helping our clients attain their professional and private goals.

As you begin your professional career, you will be called on to make critical choices that will impact your life. Contract negotiations, investment strategies, marketing opportunities, and life and skill development will challenge you at each phase of your career. At Cornerstone Management, we have the experience and expertise to help you skillfully meet these challenges. Because we understand the unique nature of your career, you will be able to make informed decisions that are in your best interest and consistent with your personal goals.

As a member of the Cornerstone family, you are the boss. Our knowledgeable, resourceful, and respectful staff will work for you. Excellent communication, personal service, and individual attention are the lifeblood of a successful client-agent relationship and will always be our priority – no matter where your career may take you.

At Cornerstone Management, our commitment to the client is unconditional. We will provide honest service and support that will allow you to maximize your potential.

Depend on people who share your commitment to success.

OUR STAFF

Steve Mountain

Owner/Founder/Principal Agent

Steve founded Cornerstone Management in 1983 as a representation business, and has remained the principal agent since its inception. Steve has managed and continues to manage professional athletes across the four major sports and combat sports, musicians and bands, radio/television personalities, authors, and business executives. In all, it is estimated that Steve has represented over 300 individual clients over the span of 35 years.

His professional career began as a social worker which led to the appointment as Executive Director of a Philadelphia-area Big Brothers/Big Sisters chapter.

From 1980 to 1994 he owned and operated, Cabaret – a chain of nightclubs, for over a decade. The Cabarets featured more than 500 national acts annually, as well as regional and local acts, spanning from rock to reggae, folk to blues, and jazz to hip-hop. The legendary clubs featured live music from some of the most recognized names in the industry including Buddy Guy, The Band, The Ramones, The Pretenders, The Red Hot Chili Peppers, and many more.

In 2002 Steve founded Summit Sports Training Center, a chain of training centers with locations in Villanova, Aston, and West Chester, PA, and in Cherry Hill, NJ. These centers were predominately built with his focus of development in mind. Summit’s state-of-the-art equipment and high-level training staff provided a place clients could go to for proper training.

Steve is also the founder and president of MT Consulting, Cornerstone’s affiliated company, which specializes in healthcare industry acquisitions. Steve is recognized as the most experienced analyst in the physical therapy industry where he has used his expertise to negotiate over $750M in transactions and managed the real estate development for one of the nation’s largest outpatient rehabilitation providers.

Through all of his endeavors, Steve has built an identity for Cornerstone that is centered around honesty, passion, and conviction. It is these values that drive our business and help to support your career.

Dave Thomas

Agent/Advisor/Recruiting

Dave Thomas is involved in the recruitment and management of hockey players.

Dave’s own hockey career included participation in U.S.A. Hockey’s developmental program, several years of Junior hockey in Pennsylvania, two years at Deerfield Academy, a collegiate career at Division 1 Colgate University, and a year of professional hockey in the French Elite League. Dave served as captain of highly successful teams at both Deerfield and Colgate.

Dave also excelled academically at Colgate. He was the recipient of Colgate’s highest honor for academic achievement and community contributions, the 1819 award; the ECAC Merit Medal; an NCAA Postgraduate Scholarship; and the John T. Mitchell Memorial Award, for excellence in Philosophy. He was also named to the ESPN/CoSIDA Men’s Academic All-District I Team and inducted into the Phi Beta Kappa Honor Society.

Dave is fluent in French, which enables him to communicate with native speakers in Ontario and Quebec and is an asset to Cornerstone’s European operation.

Bryan Mountain

Agent/Advisor/Recruiting

Bryan began working at Cornerstone in May 2014 and is involved with the recruitment and management of hockey players, basketball players, and mixed martial artists. He draws experience from his time as a Division 1 hockey player as well as growing up in the management world through his father.

His playing career included participation in U.S.A hockey development camps where he earned a spot on Team USA’s U17 team. Bryan spent two years playing prep school hockey for Milton Academy before starting his junior career which included playing for the Des Moines Buccaneers in the USHL, and winning championships with the Penticton Vees in the BCHL and the Portage Terriers in the MJHL. He played his college hockey at Northeastern University where he was a 5-time Hockey East All-Academic team.

Upon starting at Cornerstone Bryan also participated in the Master’s program in Criminology at the University of Pennsylvania and is currently planning on going to law school.

Rob Sullivan

Recruiting/Advisor/Skill Trainer

Rob began working at Cornerstone Management in January 2017 and is involved with the recruitment, advising, and skill development training of basketball players.

Rob is a graduate and former basketball player of Saint Joseph’s University. From 2006-16, he served as Director of Men’s Basketball Operations for SJU. With the Hawks, Rob’s main roles included execution of the program’s Nike contract and all branding projects involving the Men’s Basketball Team. In addition to having multiple years experience in the basketball business, Rob is heavily involved in skill development training with numerous clients playing professionally in the NBA and Overseas.

During his professional career, Rob has served on numerous boards and committees at his scholastic alma mater, LaSalle College High School, along with the American Cancer Society’s Coaches vs. Cancer Program. Rob and his wife, Blair, reside in Philadelphia with their son, William Tate Sullivan.

Chris McNelis

Client Services

Dana Brennan

Client Services

“Cornerstone is much more than just an agency, they’re a part of my family. Whether it be in the gym, on the court, or at home, Steve and his team have dedicated their full attention and services to anything I need. From my time in Orlando and now Denver, Cornerstone has helped me grow as a player, and more importantly as a man.”

Jameer Nelson | Denver Nuggets, 14 year NBA veteran

“Cornerstone is much more than just an agency, they’re a part of my family. Whether it be in the gym, on the court, or at home, Steve and his team have dedicated their full attention and services to anything I need. From my time in Orlando and now Denver, Cornerstone has helped me grow as a player, and more importantly as a man.”

Jameer Nelson | Denver Nuggets, 13 year NBA veteran