Since 2004, Mtre Aylwin has repeatedly represented the heirs of vacant successions in order to establish their right to claim their share of a succession held by the Curateur public du Québec or the Ministère du Revenu du Québec, as appears in particular from the following decisions: S.S. et al. v. Curateur public du Québec, February 23, 2004; L.C. v. Curateur public du Québec, May 13, 2004; The Estate of Alexander Greig Thom et al. v. The Estate of Alexander Théodore Thom et al., September 18, 2007; Mason et al. v. Sous-ministre du revenu du Québec, April 30, 2009 and Fourie et al. v. Sous-ministre du revenu du Québec, August 5, 2009.