Our Purpose

At SLG Sports & Entertainment, we strive to fiercely protect our clients, their careers and their earnings.

We are available. We are honest. We believe in what we do. Our purpose is to provide our clients with a comprehensive understanding of the business side of the NFL, along with realistic expectations for what they can expect in their careers. From the first overall pick to the last man to make a roster, our experience has given us the knowledge, network, and insight into every aspect of our clients’ professional football careers.


Any agent can have a good day, week, or year, but 32 years and counting simply cannot be matched.

"Modest in speech, superior in action"

Our Team

Brad Sommer


Brad is the President of SLG Sports & Entertainment, LLC”. He handles all legal needs for the agency’s clients, from endorsement contract review to securing intellectual property rights, to business startup matters, personal injury, real estate, family law issues, and criminal defense.

Alexander Guminski

NFL Agent & Attorney

Alex is the Vice President of SLG Sports & Entertainment and he is certified by the NFLPA as a Contract Advisor for NFL Players. As an agent, Alex has represented over a dozen NFL rookies, veterans and free agents during his career. He also handles all business and marketing matters for his clients, including, communication with team personnel, family members, coaches, trainers, media networks, corporate sponsors and charities. He negotiates both performance and endorsement contracts for his clients, giving them peace of mind and confidence, so they can focus on playing football.

Eric Metz

Senior NFL Draft Advisor

Eric has negotiated contracts for NFL players, executives, and coaches since 1986. Fortunately, he learned the business from Bruce Allen, NFL GM’s, Head Coaches and Presidents in the 80’s and 90’s, giving him the unique perspective from both sides of the table. He has represented 34 first-round picks in the NFL as well as Hall of Famers, Pro Bowlers, NFL Head Coaches, Coordinators, position coaches, college coaches, and executives. He has handled endorsement and marketing contracts for hundreds of athletes with Nike, Adidas, Under Armour, Reebok, Wheaties, Fathead, Campbell’s Soup, Hershey’s and dozens of other companies. He has also managed and negotiated golf events, camps/clinics, and sponsorship deals for athletes, celebrities and coaches.

Lee Davis

C.O.O & Director of Community Affairs

Lee Davis is the newly-appointed C.O.O. of SLG Sports and Entertainment. Mr. Davis is an award-winning member of the Sports and Entertainment industry and has over 20 years of experience in the field. Lee is also a well-respected entrepreneur, organizer, mentor, and youth advocate that has dedicated his life to empowering youth and the community.

Steve Tanzilli

Senior Advisor for Marketing, Branding and Post-Career Planning

Steve serves as the Dean of the Rowland School of Business at Point Park University. He connects his students to the sports and entertainment industry through robust internships and delivering innovative classes. Prior to becoming Dean, Tanzilli ran his own sports talent agency, Sports Legends Group, a full-service marketing, finance and law firm for professional athletes. He has worked with players from the Pittsburgh Steelers and other high profile clients. His background includes 12 years of experience with 141 Worldwide Sports and Entertainment where he worked closely with clients such as Coca-Cola, 84 Lumber, Sunoco, TOPPS, ESPN, and Kraft Foods. In addition, Tanzilli has worked with the Pittsburgh Pirates, Johnston Steel Baseball Club, International Sports Marketing and Communicator Sports Marketing.

​Austin Brooks

Player Endorsements & Social Media Specialist

Austin Brooks serves as the Player Endorsements and Social Media Specialist for SLG Sports & Entertainment. Austin attended Point Park University and earned a Bachelors of Science in Sports and Entertainment Management with a focus in Sports Marketing. Mr. Brooks has cultivated relationships with established executives in the Sports and Media industry, which gives our clients a significant advantage in enhancing their brands and enterprises outside of the playing field. Austin’s commitment and dedication to our clients, along with his exclusive network, make him a valuable member of our team.

Thomas A. Seiler

NFLPA Registered Player Financial Advisor

The Raymond James Financial Group has more than 75 years of combined financial experience. Their team has modeled their practice on high-net-worth professional athletes and give them the personal attention each client requires. Mr. Seiler and his team make every effort to understand their client roster and help them make informed and confident financial decisions. Tom currently lives in Newtown, Pennsylvania with his wife Debbie, and has two children, Alexa and Jake.