(August 29, 2023, 12:55 PM EDT) -- PITTSBURGH — The Pennsylvania Supreme Court vacated an appellate court’s decision and reinstated an orphans’ court order determining that an irrevocable trust was invalid because it was created by an agent under a power of attorney (POA) that was deemed void ab initio, finding that “when a court concludes that a power of attorney is a nullity, any action taken under the auspices of the power of attorney is likewise a nullity.”...