Heffel has proudly partnered with the artist estates of Guido Molinari, Lawren Harris, B.C. Binning,
Betty Goodwin, Joe Fafard, among others, and important collector estates such as the Estate of Helen E. Band,
the Estate of Theodosia Dawes Bond Thornton, the Estate of Blema and H. Arnold Steinberg, The Estate of Arthur
Erickson, and many others.