Shannen Doherty's ex-husband is fighting the late actress' estate over money claims

Shannon's legal team and Christopher Cortazzo, trustee of the Shannen Doherty Family Trust, alleged that her ex-husband failed to comply with several "monetary obligations" from the divorce settlement.

However, according to Us Weekly, Iswarienko's lawyer claims the signed divorce agreement was brought to the wrong court and is now challenging the jurisdiction of the case.

He argues that the divorce deal should not have been filed after Doherty's death and that the court has no jurisdiction to enforce the terms of the agreement.

According to the terms of the deal, obtained by PEOPLE, Iswarienko was required to sell her $1.5 million Texas home and "equally divide the net proceeds with [her] estate" but, it has been alleged he "refused to list" the home, where he appears to be currently living.

He allegedly has also "refused to return [Doherty's] items of personal property".

Additionally, Iswarienko has reportedly failed to "produce his inventory" of photographs of Doherty.

He is said to be "14 months delinquent" on a request to give copies of all photographs of Doherty to her estate no later than September 1, 2024.

And, while Iswarienko was to buy out Doherty's share of a Mooney M-20 airplane for $100,000 and pay that sum to her estate within five business days of the sale, he allegedly "unilaterally withheld $50,274" after making the sale.