GO WITH THE ORIGINAL SIGNED WILL!!!!!
I have just spent the last several years of my life and literally tens of thousands of dollars in fees to clean up almost the same situation.
This will be contested no matter which will you follow, or what anyone named in said will says.
1. DOCUMENT EVERYTHING
2. Only follow the letter of the will DO NOT IMPROVISE OR INTERPRET last wishes. this is the job of a probate judge.
3. IMMEDIATELY get a really good family law/will/trust attorney (good ones are EXPENSIVE)
4. The opposing attorneys will be “contingency” layers who will work for a cut of ANY settlement as well as hourly fees.
5.Be prepared to be called every vile name in the book by people you would not expect. (and they will turn against you too)
6.Unless you are blessed, and there is no contention, it will still take several months in probate, and several months after to finally EXECUTE the will.
7. Seek help and counseling from a clergy person you can trust. You will start off strong, but the opposition lawyers main strategy will be to overwhelm you and wear you down.
Best of luck.
Sean
8. Let the fictional case of Jarndyce and Jarndyce as presented in Bleak House remind you that this kind of drawn out legal mess is nothing new.