A valid, current will, beneficiaries named correctly on your registered and insurance accounts, and an understanding of probate in your province. These cost little, prevent most of the painful surprises, and are the foundation everything else is built on. Your lawyer handles the will; we make sure it all lines up.
Start with the will. An out-of-date will, or no will at all, is where families run into the most trouble, because the law then decides who gets what and it may not be what you intended. Review it after any major life change such as a marriage, a divorce, a death, or a new grandchild. Your lawyer drafts and updates it. Our job is to make sure the financial plan and the will tell the same story.
Beneficiary designations matter just as much and are easy to overlook. On registered accounts and insurance policies, the named beneficiary generally receives the money directly, often outside the estate, which can speed things up and may reduce probate. Naming a spouse as the beneficiary of a RRIF is also what allows that tax-deferred rollover. Stale designations, like an ex-spouse left on an old account, cause real heartache, so they are worth checking.
Then there is probate, the estate administration tax charged when a will is validated. It varies from province to province, so the specifics depend on where you live, and it is only one piece of the puzzle rather than the whole tax story. The good news is that the basics here are not expensive or complicated. They simply have to be done, and kept current, and they prevent most of the avoidable pain.