Revocable living trust Will
Time and expense Can be simple or complex, depending on the size of your estate. More complicated estates will require more attorney hours, which could add to the cost. Simple to create and relatively easy to change. Probate is an added expense that should be considered.
Flexibility You can change or amend your trust at any time, but you may need an estate attorney's help.  You can update your will at any time, but it's advisable to keep track of the latest version to avoid potential will contests.
Establishes guardianship No. You'll need to pair your trust with a will that includes guardianship provisions.  Yes. If you have minor children, you must create a will to stipulate guardianship should both parents pass.
Subject to probate No. Assets within the trust do not have to go through probate. Yes. Your executor will have to open probate in each state where assets are held.
Implementation Effective once it's established and assets are transferred. Only upon your death.