TurboTax can prepare T1 tax returns for individuals including the deceased. If you need to prepare a T3 Trust Income Tax and Information Return, Intuit offers another product called Profile that can do T3 returns. http://profile.intuit.ca/professional-tax-software/profile-onepay.jsp

Here is more information regarding preparing a T1 return for a deceased person. https://turbotax.community.intuit.ca/replies/2647725