PITTSBURGH — Former Republican state Sen. Jane Orie will be released from state prison on Sunday, 20 months after she was sentenced for using her taxpayer-funded legislative staff to do campaign work and forging defense exhibits to try to cover it up.

“She’s being released Sunday and it’s a day that’s been long awaited for by her and her family,” Orie’s attorney, William Costopoulos, said today.

Her senatorial district includes southern Butler County.

Orie, 52, was sentenced in June 2012 to 2½ to 10 years in prison by an Allegheny County judge. But she’ll be out Sunday because of credit for good time and a rule that let her serve just 75 percent of her minimum term because she’s a non-violent criminal who isn’t likely to reoffend.

Orie has served her sentence at the State Correctional Institution-Cambridge Springs, which is near Edinboro.

She will return to Pittsburgh’s North Hills where she’ll return to live with her father, a retired physician.