Sending a notice via registered mail.

You don't seal the envelope right away. You put a line on the Notice / affidavit / document that says Reg Mail#__________________

You get the post office to print out the reg mail sticker and you write down the tracking number that is on the sticker on your legal document, then you put the document in the envelope and seal it up. You should have two witnesses there to witness the paper going into the envelope, then get them to sign a Certificate of Mailing that has a copy of your papers attached to it.

You can use two or three good men to witness your documents. That's as good as a notary.