Sheel Seidler has initiated a lawsuit against her late husband Peter Seidler's brothers, Matthew and Robert, alleging they have breached their fiduciary duties as trustees of the Seidler Trust. This trust has governed the San Diego Padres since Peter's passing in November 2023. Sheel claims that Peter intended for her to become the team's control person but was disappointed that he did not leave her a trust generating significant income, prioritizing their children instead.

Matthew Seidler responded, asserting that Sheel demanded millions in payments. He further implied that her legal actions adversely impacted the Padres' negotiations with Japanese pitcher Roki Sasaki, who eventually signed with the Los Angeles Dodgers. He claimed that Sheel's lawsuit fueled speculation about relocating the team, which might have driven Sasaki away due to perceived instability within the franchise. The ongoing family dispute casts a pall over the Padres' ownership and roster strategies.