"Get your affairs in order."
Ever see one of those old movies where two guys challenge each other to a duel? Pistols at dawn? They are given those extra few hours to get their final bills settled, since one of them is likely not walking away.
No one is fighting duels anymore, but your clients should consider organizing their finances to make sorting them out easier for their heirs when the time comes. It's good for your client. Their heirs. It can lead to more business.
This article doesn't address estate tax minimization. The focus is the organization and paperwork connected to awareness of all clients' assets. If assets are never found, the "cost of dying" can be considerable for your client and their heirs.
There might be assets that are lost or never found. If their executor is an attorney, the time they spend organizing the estate is probably billed by the hour.
Centralizing at one firm.
It makes lots of sense. All the savings, insurance and investments are in one place. They get a consolidated statement. They have a financial plan listing their assets. They get you. This is the most obvious business connection. It makes logical sense, too.
List of where the accounts are held.
Let's assume your client won't consolidate. Maybe they can't. Some securities can't be held at your firm for some reason. They need a list of what assets are held at which institutions. Your performance reviews can often include "assets held away." At least this lets you know where they have other accounts. This can be very helpful for their executor.
Insurance policies.
They might have fully paid policies. Maybe term ones, too. The life insurance companies need to be notified when the insured person has passed away. Ideally your client has a folder containing the policies or at least a list of companies, policies and account numbers. If you aren't holding these policies, the name of their insurance agent will be needed.