YOUR MFB TEAM

  • Image of zack founder

    Zack Steinlauf

    FOUNDER

    B.Comm.

    Zack is no stranger to fitness, be it competitive sports, marathon running, or circuit training. Being a four-time marathon finisher, his knowledge of implementing effective conditioning into any routine is most impressive. Zack’s enthusiasm and vibrant personality makes him perfect to motivate clients of all levels. Being in a positive environment with a motivational coach is a recipe for success. Having a coach like Zack will show each trainee the potential they have to succeed.

    “Mindset is one of the biggest components of fitness. You are your biggest competition and only you have the ability to reach greatness!”

  • A young woman with shoulder-length light brown hair smiling, wearing a black sweatshirt with white text and logo, standing in front of a plain black wall.

    Lia Boretsky

    Personal Trainer

    NASM Certified PT

    M. Sc. Dietetics (ongoing)

    Lia is eager to bring her passion for fitness and wellness to the Mtlfitbros team. She enjoys staying active through biking and hiking, alongside her commitment to gym-based fitness. Having participated in group classes since high school, Lia understands how starting fitness at a young age can shape lifelong health.

    With extensive experience working with kids, she takes a special interest in leading youth classes to help them build strong habits early on. While she enjoys working with youth, Lia is equally committed to training clients of all ages and fitness levels, designing personalized plans to help everyone achieve their fitness goals.

  • Male trainer

    Issie Steinberg

    Personal Trainer

    YMCA PT

    B.A. Human Relations

    Issie discovered his passion for fitness through his own transformation journey while completing his degree at Concordia University. By committing to consistent training and education, he lost over 70 pounds, built significant muscle, and developed a deep appreciation for the impact fitness can have on both physical and mental well-being.

    He later became a certified personal trainer and has continued to challenge himself through bodybuilding, multiple half marathons, and the 21K Spartan Race, where he finished in the top 8% of his category. These experiences shape his balanced approach to training, combining strength, conditioning, and sustainable habits.

    As a coach, issie is passionate about helping clients of all fitness levels build confidence, discipline, and long-term success.

  • Summer Woods

  • image of co-founder matthew

    Matthew Steinlauf

    CO-FOUNDER

    LL.L., J.D

    Matthew started off his active lifestyle as an avid tennis player. He went on to participate in many tennis competitions and a variety of sports teams. His journey in fitness started with circuit training classes where he had great weight loss success. In addition to enjoying circuit training, he has a passion for Barbell training and helping those become stronger individuals. Using Barbells is one of the simplest and most effective ways for trainees of all ages to become stronger. As a coach, Matthew is able to correct form flaws and motivate trainees to push past that mental barrier and realize their potential for success in fitness.

    “Strength is fundamental for all; whether it is playing with your kids, or excelling at your sport. How do you want your quality of life to be?”