Boston Grand Prix, the local organizing entity of the since-canceled Seaport IndyCar race, is filing for bankruptcy, Boston.com reported today. The news comes amid the legal and financial mess resulting from the millions of dollars the group owes race ticket buyers and stakeholders. Boston Grand Prix said in its bankruptcy filing that it has less than $50,000 in assets, while listing liabilities of more than $1 million and between 1,000 and 5,000 creditors. Massachusetts Attorney General Maura Healey recently threatened and moved toward legal action against Boston Grand Prix in an effort to recoup ticket holders’ money.