Nancy became a student of the Vidyadhara Chögyam Trungpa Rinpoche in 1979. In 2010, she completed the three-year-retreat at Söpa Chöling under the direction of Thrangu Rinpoche and subsequently assumed the role of Druppon (retreat master) for the latest retreat which ended in 2017. She has studied with a number of teachers over the years, including attending Scorpion Seal retreats with Sakyong Mipham Rinpoche.

Nancy attended the first dathun in 1981 when oryoki was first introduced, and more recently co-taught 2 mahamudra dathuns at DDL and served as meditation instructor at 2 CTR-style dathuns at Lerab Ling in France.