It might be tempting to stop planning after retirement. However, there is still some planning left to do, according to the Wills, Trusts & Estates Prof Blog in "Post-Retirement Planning: A Checklist for Seniors."
Retirees need to plan for emergencies and the possibility of no longer being able to handle their own affairs. They need a general durable power of attorney and a health care proxy.
Fortunately, those documents are easy to get from elder law attorneys. However, just getting those documents is not quite enough.
If something happens to a retired person, the people designated to help immediately need to be able to step into their roles. That means all the information necessary for them needs to be gathered into one place. This information includes a list of financial, investment and digital accounts. It also means that the legal documents need to be stored in the same place. Finally, a trusted friend or family member should be told where to find everything, if needed.
An elder law attorney can advise you on any questions that arise during retirement.
Reference: Wills, Trusts & Estates Prof Blog (March 20, 2018) "Post-Retirement Planning: A Checklist for Seniors."