Theresa M. Ellis

Founder and CEO

Theresa has dedicated her career to bringing innovative, impact-creating solutions to the most pressing social problems. As a little girl, she worked with her parents to help a family of eight children get back on their feet after both their parents were killed. This experience gave her a sense of the transformative power the right capital invested in the right venture at the right time.

Theresa brings two decades of experience in the social impact space to Liminality Partners. After beginning her career in education evaluation, Theresa founded Common Impact, a social enterprise that was the first to build systematized, pro-bono programs for Fortune 500 companies. After serving as CEO of Common Impact, Theresa took an appointment as the Gleitsman Visiting Practitioner at the Center for Public Leadership at Harvard’s Kennedy School of Government. In this role, she taught leadership, worked closely with students interested in social enterprise, and conducted research on the role of multi-sector leadership in addressing complicated, societal challenges.

More recently, Theresa returned to Dartmouth and lead the reorganization of the Tucker Foundation. Through a multi-stakeholder process, Theresa launched two new centers: The Tucker Center for Spiritual Life and The Dartmouth Center for Social Impact. As the founding Director of the Center for Social Impact, Theresa set the strategy, recruited a team, raised early capital, and built a board of advisors.

As the Founder of Liminality Partners, Theresa advises families and individuals who want to leverage their resources and tackle the social problems that are important to them. She collaborates with her clients to craft and implement their philanthropic strategies, work through operational challenges and evaluate their effectiveness. Theresa earned an AB in Religion with honors at Dartmouth College where she graduated magna cum laude and Phi Beta Kappa. She received the Phillip D. McInnis Class of 1936 Award, given to the outstanding woman in the graduating class. Theresa serves as the Chair of the Board of Trustees of the Brookwood School and as a judge at several social enterprise competitions. She also served on the Board of Trustees of the Essex County Community Foundation. She lives on Boston’s North Shore with her husband, their two children, and their dog.

Louisa Kania


Louisa is dedicated to understanding how money and resources can be leveraged in support of connection, healing, and equity. She is a strong believer in the importance of aligning one’s values and actions. For her, this means being guided by empathy, joy, appreciation, the pursuit of interesting questions, and a desire to live generously. She sees her work at Liminality Partners as a way to build bridges between people, ideas, and organizations, thereby helping create resilient, equitable systems and promote well-being for all.

Louisa graduated summa cum laude and Phi Beta Kappa from Williams College with a degree in English literature and a focus on Buddhism. Volunteering has long been an important part of her life, whether at nursing homes, schools, or Boston-based nonprofits. Her experiences traveling have also been formative, exposing her to a variety of people and perspectives. After working in teaching, academic research, and event coordination, Louisa decided to bring her research skills, passion for mission-driven work, and desire to facilitate meaningful connections to philanthropic advising. She connected with Liminality through research on joy in philanthropy and was thrilled to join the team in support of strategic operations and work for clients. Louisa lives in Needham, MA, a short drive from her hometown of Cambridge.

Isaac Mintz

Director of Finance

Isaac M. Mintz is an experienced leader with over 19 years in the nonprofit sector. Isaac most recently served as the Vice President of Finance and Operations with the Jane Goodall Institute, a global conservation organization.

Isaac’s career has also been dedicated to social justice issues. He considers himself an innovator in growth and expansion strategy. He has proven his ability to challenge, change and better existing processes, procedures, and systems.

Isaac received his B.S in Accounting and Information Systems from High Point University in 2004. He also earned a Masters, cum laude, with a concentration in Accounting in 2006. He received his Master of Business Administration with a concentration in Information Technology and Business Management in 2009. Isaac has his CMA Certification and is a candidate for the Uniform CPA Examination.