Gurpreet Ronald, the Ottawa woman convicted of first-degree murder in July 2016 in the death of her one-time lover's wife, is appealing her conviction, her lawyer says.

Michael Smith told CBC News that he's filed an appeal based partly on the grounds that Superior Court Justice Julianne Parfett should have recused herself from the trial.

Parfett called his client "deceitful" during a bail hearing, Smith said — language that showed she was biased.

Ronald was convicted along with Bhupinderpal Gill last month in the death of Gill's wife Jagtar, a 43-year-old mother of three whose stabbed and bludgeoned body was found inside her Barrhaven home in January 2014.

The pair both received automatic life sentences with no chance of parole for 25 years.

Bhupinderpal Gill's lawyer, James Harbic, said after the verdict was delivered that his client would also be launching an appeal.