Arnold executed a one-page will in which he devised his farm to Burton. Later, after a quarrel with Burton, Arnold wrote the words I hereby cancel and revoke this will /s/ Arnold in the margin of the will but did not destroy the will. Arnold then executed a deed to the farm, naming Connie as grantee, and placed the deed and will in his safe. Shortly afterward, Arnold married Donna, with whom he had one child, Ernest. Arnold died some time later, and the deed and will were found in his safe. Burton, Connie, and Ernest claim the farm, and Donna claims dower. Discuss the validity of each claim.

This is Business Law question.