By Matthew A. Quick In light of the recent holding in Dunn v Patterson, Nos. 3-07-0881, & 3-08-0350, estate planning documents that do not allow amendment or revocation except with the drafting attorney's consent or upon order of court are not void as against public policy. The Court noted that it is reasonable for an attorney to include provisions to be sure requests for amendment or revocation were not based on undue influence or coercion, especially when a client has a special need to to age or disability.