i am gonna disagree some, with the previous answers. unless you live in louisiana, trusts are quite similar in the various other states. and most on-line trusts should be fine for your needs.
you are simply wanting to create a device that gives away all assets at the time of death, without the process of probate. i refer to that trust as a glorified will !!
most any basic trust will do this.
it is when the trust lives on as an ongoing entity after the death of the grantor, when the language of the trust is much more compelling.
i always make the last page of my trust with both my signature of the trust, and all the notarial wording. now the notary wording is apt to be different for each state. and it needs to be exact, or the notary wont notarize it.
it may be legal for the notary to attach a notary page to the trust document. i have seen attachments to many other documents. but i would never consider any sort of attachment. i like everything to be an actual part of the document.
i would also advise you to number the trust pages, if you choose to use a program that does not do so.
page 1 of 10, page 2 of 10, ....., page 10 of 10
i actually sign, initial, and date every single page. although in your situation, i realize you might need to have one that does not involve the grantor to any more degree than is necessary