In Pennsylvania, to modify your living trust, you must prepare an amendment to the original trust document. This amendment should clearly state the changes you intend to make, such as adding or removing beneficiaries, changing trustees, or updating distribution instructions. The amendment should include the date, your name, the name of the trust, and the date the trust was created. Your amendment should be signed in the presence of a notary public, just like the original trust document. If you are planning substantial changes to your living trust, you might consider creating a restatement of the trust. A restatement allows you to rewrite the entire trust, while preserving the original date and title of the trust, which can be helpful in avoiding the necessity to retitle assets. In the restatement, you would include all the changes you want to make, and the new provisions will entirely supplant the old ones.