Can a court award costs against counsel even if bad faith is not proven?

It is to be noted that costs can be awarded against counsel even where bad faith is not proven. Two things have be proven: a. The costs must have been run up because of the “fault” of the lawyer in question. This does not necessarily require a finding of bad faith, but a mere error in judgment will not do; and b. The case must be a case where costs against counsel are warranted, taking into account the fact that “extreme caution” must be exercised by the court in determining whether costs should be imposed against counsel; See Ben Lolo v. Wang, [2012] O.J. No. 519 (Div. Ct.).