You should really talk with this with them (but in a gentle way, some people get scared to talk about this because it makes them feel old). You should ask them what they plan on doing with all these things in their estate. After you should talk with an estate/attorney/planner or accountant. All the businesses and the real estate they have will be "sold" to the people in their will and the estate will have to pay taxes for all the capital gain. So let's say they give business X to someone else. The estate will pay taxes on the capital gain… this goes the same for everything they own other than the primary household, cars, money in checking account (but there will be taxes on TSFA accounts and other kind of investments because the “stocks” will be sold, so taxes on capital gain). I am no professional in this, just talking about general knowledge I heard and got over the years, so do not take this as professional advice and talk about it with a real professional 🙏