CBC News reports this; the lawyer is a Mobina Jaffer, member of the Canadian Senate. Nor does this seem like a timekeeping glitch, or some unusual accounting system agreed on with the client:

Liberal Senator Mobina Jaffer is under investigation by the Law Society of British Columbia for allegedly overbilling one of her legal clients, including charging for 30 hours of work in a single day, CBC News has learned....

Jaffer has been called before the law society to account for more than $6 million in legal bills charged to her former client, a Catholic missionary order known as the Oblates of Mary Immaculate....

The Oblates, whose B.C. headquarters are based in New Westminster, fired Jaffer and her son, Azool Jaffer-Jeraj, three years ago after receiving bills of $6.7 million. They had hired the Jaffers to defend them against dozens of claims of abuse in residential schools....

The Jaffers settled the lawsuit out of court in December; however, the law society said the case still requires an investigation....

The accounts obtained by the CBC also showed that Jaffer's son once billed for 32.4 hours in a day, at the end of a week in which he claimed an average of 20 hours of work a day....

[B]efore settling with the Oblates, both Jaffer and her son were examined under oath. Jaffer said then that billing for more than 24 hours a day was "an error." ...

Of course, these are Canadian hours, which at the time amounted to only 70% of an American hour.