Semper Fi Flo BOARD OF DIRECTORS

Molly Ambrose is the visionary founder of Semper Fi Flo, a nonprofit born from personal experience and a deep commitment to supporting military personnel and their families. Her journey began in 2015 when her son, Nick Ambrose, enlisted in the U.S. Marine Corps. As a military mom, Molly quickly became attuned to the emotional and logistical challenges faced by service members and their loved ones.

What started as a grassroots effort to ship care packages overseas and rallying  support from family and friends soon evolved into a broader mission. By 2017, Molly was adopting local military families in need, and by 2018, she had extended her outreach to Minnesota Veteran Homes. In 2019, she began supporting the Armed Forces Service Center at Minneapolis-St. Paul International Airport, further expanding her impact.

Encouraged by her son, now a veteran, Molly formally established Semper Fi Flo as a Sec. 501(c)(3) nonprofit in 2020. Under her leadership, the organization has shipped over 6,500 care packages worldwide, supported 128 military families, and partnered with seven Veteran Homes across Minnesota. Molly’s unwavering dedication, compassionate leadership, and hands-on approach continue to inspire a growing community of supporters and volunteers.

With more than two decades of experience in financial services, Holly brings deep expertise in nonprofit accounting, regulatory compliance at both state and federal levels, and risk management. Her guidance helps mission-driven organizations confidently navigate the complexities of financial oversight and long-term sustainability.

Holly earned a Master of Business Taxation from the University of Minnesota’s Carlson School of Management, further solidifying her knowledge in tax law and financial accounting. Her career also encompasses leadership in operations and information technology, ensuring seamless business processes and technological advancements that drive efficiency.

Although Holly is a civilian, her lifelong friendship with Molly, that began in third grade, has inspired a deep commitment to supporting not only Molly as a military mom, but Molly’s mission to support the broader local military community. With a strategic mindset and strong financial expertise, Holly is devoted to making a lasting difference in the lives of service members and their families by helping strengthen the financial health of Semper Fi Flo.

Mark Castillo serves as Chief Technology Officer for Semper Fi Flo, where he leads the organization’s digital infrastructure, cybersecurity strategy, and technology operations. A U.S. Marine Corps veteran with over seven years of experience in recruitment leadership, Mark brings a mission-first mindset and a deep commitment to service.

His technical expertise spans cybersecurity, systems integration, and data analytics, backed by certifications including CompTIA Security+, Certified Ethical Hacker (CEH), Splunk Core Certified User, and Lean Six Sigma Green Belt. Mark’s approach combines operational precision with a passion for innovation—streamlining logistics, enhancing digital security, and simplifying workflows to better serve veterans and their families.

Mark holds a degree in Military and Strategic Leadership from Marine Corps University and has earned recognition for his leadership, team development, and community engagement throughout his military career. Mark joined the Semper Fi Flo board in 2021 and continues to champion resilience, integrity, and technological excellence in support of the organization’s mission.

Tracy Langheinrich brings a powerful blend of professional expertise and personal passion to her role on the Semper Fi Flo board. A versatile, action-oriented collaborator, Tracy’s dynamic career spans leadership, business and product development, strategic selling, account management, and customer engagement. She has contributed her talents across the IT channel and EMS industries while deepening her knowledge in holistic wellness practices.

In 2019, Tracy launched Calming Waters Wellness, a small business dedicated to alternative healing methods and creating a calming space for personal restoration. The center was born from a deeply personal mission inspired by her late father—a Vietnam veteran who struggled with PTSD, vaccine injury, and alcoholism. His passing fueled Tracy’s commitment to helping other Veterans access the support and tools they need to heal. Calming Waters offers a safe, empowering environment where Veterans can reclaim their lives through holistic care.

A steadfast supporter of Semper Fi Flo since its inception, Tracy joined the board in 2024. She contributes her strengths in business operations, project management, event planning, and fundraising to help advance the organization’s mission and foster resilience within the Veteran community.

Karen Leum has a background in the financial services industry, having worked for Wells Fargo for 36 years. During her 36 years at Wells Fargo, Karen held various positions in Operations, Technology, and Community Banking, bringing a comprehensive understanding of operational integrity and strategic oversight to every endeavor.

Karen holds a Master of Science in Telecommunications from St. Mary’s University and dual Bachelor of Arts degrees in Marketing Management and Operations Management from the University of St. Thomas. Her academic foundation complements her practical experience, enabling her to navigate complex regulatory environments and drive effective governance.

As the mother of a Marine who enlisted in 2017, Karen’s commitment to Semper Fi Flo is both professional and personal, having supported Semper Fi Flo since fall of 2017 with Molly's first outreach efforts. Karen joined the board in 2024 bringing her financial acumen, risk management insight, and passion for military-related causes to help strengthen Semper Fi Flo’s impact and sustainability.

Angela “Angie” Pohl serves as an active board member of the Semper Fi Flo Foundation, a Minnesota-based nonprofit dedicated to uplifting military families, veterans, and active-duty service members. With over 30 years of national leadership experience in the financial services industry, Angie brings strategic vision, fundraising expertise, and a deep commitment to service. Her professional background spans executive roles in life insurance, annuities, long-term care, and holistic planning, where she has consistently led growth, coached advisors, and driven national campaigns. 

At Semper Fi Flo, Angie helps advance the organization’s mission through hands-on involvement in care-package drives, support for veterans, and high-impact community events. As the proud granddaughter of a WWII POW, Angie’s advocacy is both professional and deeply personal—fueled by gratitude and purpose.

Kati Tarnowski has served on the Semper Fi Flo board since 2020, bringing a blend of insightful leadership, technical savvy, and heartfelt dedication to the organization’s mission. As a Marine Mom, Kati understands the unique challenges faced by military families and channels that personal connection into meaningful service. At Semper Fi Flo, Kati's tenure with SFF and her role in managing the organization’s website and digital presence has been a pillar of the organization, helping to amplify outreach and communications. Her hands-on approach, especially during extremely busy holiday outreach efforts, and deep empathy make her an invaluable part of the board, advancing the nonprofit’s efforts to support deployed service members, veterans, and their families.

Professionally, Kati is a Project Deployment Lead with DaVita Kidney Care, where she leads clinical teams, streamlines operational execution, and ensures compassionate, high-quality care. Her career spans over two decades in healthcare, sales, and management, with a reputation for team building, process improvement, and strategic execution.