Stephanie Everett, the head of a police oversight office who served as an aide to former Jamaica Plain state Sen. Sonia Chang-Diaz, is Gov. Healey’s choice to serve as Suffolk County’s register of probate and family court.

The appointment, announced Tuesday, requires the approval of the Governor’s Council, an independently elected group of office holders who vote on judicial nominations. If confirmed, the Mattapan resident would become the first Black person to hold the post.

She would serve out the remainder of a term that runs through the end of 2024, after the retirement of Felix D. Arroyo, who recently wrapped up an eight-year run as register. Vincent Procopio has been serving as acting register since Arroyo’s retirement, according to Massacusetts Lawyers Weekly. The next election is in the fall of 2024.

In a statement, Healey called Everett “uniquely qualified” for the job, noting that she “interacted with the court as both a young mother and an attorney, and she has built an incredible career advocating for justice and equity for her community of Boston.”

In her own statement, Everett said the probate and family court is “largely unknown” to the state’s residents, “until they need it,” whether it’s when a marriage falls apart or a loved one dies, or when residents have a child at a young age. She is “intimately familiar” with the court’s impact, she added, “as well as the fear, frustration, and confusion that families face far too often when interacting with the court.”

She has served as the executive director of Boston’s Office of Police Accountability and Transparency since 2021. A member of Mayor Wu’s cabinet, she oversees a $1.4 million budget and 11 employees.

“In our years working closely together, I’ve seen firsthand Stephanie’s deep commitment to transparent and accessible government, and I know she will bring her values and her many talents to this important role,” Wu said. “I applaud Gov. Healey and her team for this nomination and urge attorney Everett’s swift confirmation.”

Everett’s resume includes eight years as a solo law practitioner, lead counsel on jury and bench trials, chief of staff to the state Department of Transitional Assistance, manager of public safety for the Metropolitan Area Planning Council (MAPC), and Chang-Diaz’s deputy chief of staff.

She has also mounted two runs for 12th Suffolk state representative, a campaign for District 3 city councillor, and a run for Suffolk register of deeds.