Our Team

  • Sumee Chang

    Sumee Chang-Schadt

    Founder. Sumee built a 25 year career in business strategy and marketing at the Walt Disney Company. And as a lifelong advocate for animal welfare and rescue, her vision at AMP is to inspire and enable the broader amateur horse community, and non-traditional audiences to embrace the extraordinary experiences mustangs can bring to our lives.

  • Lori Anne Gaddy

    Lori Anne Gaddy

    Head of Operations, Board Member: Lori Anne Gaddy is a multi-faceted entrepreneur and community business developer and leader. Additionally, she volunteers her time as Director of the Hill Creek Stables in Columbia, MO. Committed to rescue, she shares her heart with Bob, a feral stallion who stole her heart many years ago.

  • Brittany Ference

    Brittany Ference

    Board Member. Brittany currently also serves as the Executive Director for Colorado-based nonprofit, Great Escape Mustang Collaborative. With a background deeply rooted in ranching, mustangs and art, Brittany brings a deep and wide knowledge base to AMP.

  • Henry Merrill

    HENRY MERRILL

    ADVISOR, HENRY MERRILL HORSEMANSHIP

  • AMY DUMAS

    AMY DUMAS

    ADVISOR, BLM WILD HORSE AND BURRO SPECIALIST

  • OLIVER YI

    OLIVER YI

    SUMMER INTERN, INTEGRATED STORYTELLING

Training by Henry Merrill Horsemanship

Self regulation is essential to developing any confident and content horse, even more so with formerly wild horses. AMP partners with Henry Merrill to give your mustangs the most balanced foundation possible.

Henry works for the first time with Mustang mare Juno, an 8 YO born in holding at Fallon, Nevada, who is afraid of the training flag.

BLM Tag 6583 (Now Reata, our 2020 Sand Springs HMA Mustang Mare) receives early touches from Henry.