Lopez was suspended for violating court rules regarding confidentiality of information, duties to former clients and misconduct.
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Lopez is also being sanctioned $5,000, according to a ruling on the site signed by Chief Judge Rebecca Pallmeyer.
He must complete eight hours of continuing legal education courses regarding duty and responsibility to clients. Under the order, Lopez is not allowed to comment.
Lopez has represented people like career criminal and Chicago mobster Mario "The Arm" Rainone and Anthony "Tough Tony" Calabrese.