Hello everyone. I have an update for anyone interested in this topic. It only took over a month to get some answers...not bad for government work. The lawyer with the state has sent this:
On the ownership issue, it is the law of decedents estates, not the law of marital property, that controls. There is a specific exemption in the provision you cite regarding title by decent. The controlling provision is found at 20 Pa.C.S. Section 2104(7). The deed correctly recognized, in the language of grant, that (Dad's name) was a married individual thus providing (Mom)rights in the entireties to the real property upon his death. (Mom)'s title, in turn, was with a right of survivorship with (My name). In this context, that property may have been gifted earlier in the chain of title is irrelevant.
later...
(Mom)can execute a Directive to Pay the entire amount to (Me), if she desires. That would be the same, essentially, as the "waiver" you suggested
20 Pa.C.S. Section 2104(7)
(7) Tenancy in estate.--When real or personal estate or shares therein shall pass to two or more persons, they shall take it as tenants in common, except that if it shall pass to a husband and wife they shall take it as tenants by the entireties.
So there we are, not that I understand it or anything
Edit: Here is he guy's title
Sr. Counsel in-Charge, R/W Trans. & Litigation
Governor's Office of General Counsel
Department of Transportation
Office of Chief Counsel
Real Property Division