dition, respondent has paid $5,770.74 to the Lawyers Trust Fund for the interest attributable to the settlement checks.
Mindful of the fact that the alleged misconduct at issue occurred prior to the Elias ruling, we now address whether: (1) the overdraft protection agreement between respondent and Bank Leumi precluded respondent from converting client funds; (2) client funds were commingled in the firm account; and (3) respondent commingled and converted the interest earned on client funds.
I
Conversion has been defined by this court as “ ‘any unauthorized act, which deprives a man of his property permanently or for an indefinite time.’ ” (In re Thebus (1985), 108 Ill. 2d 255, 259, quoting Union Stock Yard & Transit Co. v. Mallory, Son & Zimmerman Co. (1895), 157 Ill. 554, 563.) The essence of an action for conversion is the wrongful deprivation of property from the person entitled to its possession. Glaser v. Kazak (1988), 173 Ill. App. 3d 108, 115; People ex rel. Carey v. Lincoln Towing Service, Inc. (1977), 54 Ill. App. 3d 61; Hobson’s Truck Sales, Inc. v. Carroll Trucking, Inc. (1971), 2 Ill. App. 3d 978.
The Review Board found that because respondent maintained a $600,000 line of credit with the bank, client funds in his law firm account were protected and no conversion occurred. We agree.
The statutory law governing commercial paper, as applied to the facts in issue, leads to the unmistakable conclusion that respondent did not convert client funds. (Ill. Rev. Stat. 1989, ch. 26, par. 3 — 101 et seq.) The settlement check issued by respondent is a negotiable instrument, for it contained an order to pay a fixed amount of money on demand to the client at the time it was issued. (Ill. Rev. Stat. 1989, ch. 26, par. 3 — 104(lXa).) As set forth in section 3 — 202(1) of the Uniform Commercial Code, a negotia