The information you are about to provide will be the basis for your discussions with your lawyer and other financial advisers about your Will and other estate and personal planning. You do not need evaluations or apprasials for listing assets and liabilities but your best estimates should be sufficient for most dicussions.
Bring the supporting documentation for bank accounts and investments with you to your first meeting with your estate planning lawyer to assist in the planning process.
How assets are registered is important. For example, owing a home as "joint tenants" versus owning a home as "tenants in common" is of great signficance to your estate plan. Confirming beneficary designations for life insurance policies, registered funds and pension plans is also crucial.
The information collected here will not be disclosed without your express permission; for example, if you wish to have your lawyer consult with your financial adviser regarding part of your plan.