Do you mean notarize?

For instance, modification options, which some folks act like is new and it is not, are deployed by most banks and note investors.

If it appears reasonable they will let if fly, if not, they can tag the client, maybe you too.A person in a nursing home will generally have thier capacity to contract questioned, if not up front, after the fact, so I suggest having the contract notarized by the nursing home staff, while not required normally, it certainly bars them from making any claim and will only aid in any other claims.

Got the paperwork all notarized on that but the attorney that was handling it ended up giving me the run around after until he finally admitted it was more than he could handle and gave me some referrals to proceed.The problem is my uncle co-owned the property with my dad and a member of the LLC so he has control over it now that my dad passed.

If you get a good title attorney to do this for you, they'll probably write you a Special Warranty Deed or deed without warranty to transfer.If you close at title, they'll help ensure good funds from the buyer and might sound better from them about billing the buyer for all escrow and title charges and they can notarize the signatures on the deed. 

Do I have to legally notarize the "Assignment Contract" (before submitting to title company) at the title company or is it as simple as both parties signing it in the Sellers kitchen with no real witness to show the signing?

I sent it to them to sign and get notarized and send back to me.  

The seller must provide an executed and notarized Affidavit of Lost Note. 

The Purchase Agreement/land contract could even be recorded in Lucas County (at the time of the agreement signing, the Seller could have the Buyer sign and notarize a Quit Claim Deed back to Seller in the event the Buyer does not perform).  

I have my notarized release ready to go and will be filing it soon.