The estate for singer Prince fears his siblings' refusal to pay their legal bills could cause unnecessary problems for them and have gone to court to take action.

On September 19, the estate filed court docs revealing several law firms are attempting to come after Prince’s heirs for unpaid legal bills.

The estate explains they entered into contracts with Prince’s siblings — Sharon, John, Norrine, and Tyka — to provide consulting and services in connection with the Paisley Park museum and exhibition.

The siblings are each paid a confidential amount for their work.

Recently, the estate says several former attorneys for the heirs asserted attorney liens against each siblings’ interests in the estate and “at least one of the firms has taken the position that its lien” attaches to the consulting payments.

The estate is requesting permission to make the consulting payments to each heir without "without exposing the Estate to liability."

A judge has yet to rule.