Drew, because you were so incredibly naive to get conned for years by a fake immoral “priest”, you lost credibility with many people in your ability to judge any man’s character, especially a valid priest. I’d keep my mouth shut, your track record is horrendous.

Ss. Peter & Paul Roman Catholic Mission as a matter of its by-laws holds dogma as the proximate rule of faith ...

“Maybe”?  You can play that game all day and it is a game for those who have nothing better to do.  Maybe, just maybe, Fr. McMahon was there in the same sense that a vulture shows up to comfort the dying.  It was not too long ago he did the same thing with Fr. Casimir Peterson in Baltimore to ingratiate himself for the purpose of getting control of the Reparation Society of the Immaculate Heart of Mary which had several million dollars in the bank.  In doing this Fr. McMahon gave a false spelling of his name and false background to prevent any discovery of his true identity.  When the deception was exposed Fr. Peterson, who had initially been impressed by Fr. McMahon, had the police intervene to prevent any further contact.
 
Fr. Collins trusted Fr. McMahon and requested in his Will that Fr. McMahon assist Bishop Neville at his funeral Mass, but he did not trust him enough to ask him to be the executor of his Will.  That responsibility he entrusted to John Sharpe.  Fr. McMahon betrayed Fr. Collins and tried to replace Bishop Neville with Bishop Dolan and, as said before, I do not think that Bishop Dolan instigated this scheme.  Furthermore, Fr. McMahon has not made any claim that Fr. Collins made any change to his Will to him privately, nor did Fr. McMahon make any effort to have a codicil drafted by Fr. Collins.  What you are speculating on is without any foundation whatsoever.  
 
Now I think you could speculate all you like regarding Fr. McMahon’s motives but what he did does not meet the relatively low standard of common legal or business ethics.  Your attempt to excuse Fr. McMahon necessarily requires casting aspersions on John Sharpe.  So maybe, just maybe, you should leave well enough alone because the more you cast aspersions on John Sharpe, the more problems buried in Fr. McMahon’s past are going to be dragged up because what is being weighed in the balance is the character of these men.    
 
Drew

Yes.  The key part seems to be "if the executor accepted the testimony of the witnesses". And according to the witnesses, Father Collins wanted Bishop Dolan before he died.

If you do not have absolute, 100% certainty about this accusation, then you are spreading rumors and gravely hurting the reputation of John Sharpe.  This is serious stuff.  You are basically saying that 1) these witnesses all agree that Fr Collins changed his mind, and 2) that John Sharpe lied and is a criminal who is not following the law.  Do you understand the gravity of what you are saying?

I don't think that an executor has the ability/duty to judge witness accounts.  His obligation is to follow the will.  If witnesses want to stand up and challenge the will, they have to be willing to go to court, fill out an avidavit, and testify before a judge that "I, John Doe, testify that the deceased told me x on this date, at this time, etc."
.
I agree, a written docuмent takes precedence over verbal instructions simply because of misunderstandings.  Still, that does not discount what people think they heard.  At this point, we still do not have any named witnesses to Fr Collins' change of heart.  Witnesses aren't allowed to stay hidden.  If they want to change a public docuмent, they have to be willing to testify publically.  Fr Cekada's emails don't count.