What is Charging Lien?

Legal Definition
A type of attorney's lien under which a lawyer acquires an interest in a judgment awarded to the client. This may mean that the lawyer can eventually claim a portion of any money paid to the client due to the judgment. The lien arises because the client's failure to pay for legal services.

See Retaining lien (compare).
Legal Definition
An attorney's lien, for his proper compensation, on the fund or judgment which his client has recovered by means of his professional aid and services. Goodrich v. McDonald, 112 N. Y. 157, 19 N. E. 649; Young v. Renshaw, 102 Mo. App. 173, 76 S. W. 701; Ex parte Lehman, 59 Ala. 632; Koons v. Beach, 147 Ind. 137, 45 N. E. 601, 46 N. E. 587; In re Wlison (In C.) 12 Fed. 239; Sewing Mach. Co. v. Boutelle, 56 Vt 576, 48 Am. Rep. 762.
-- Black's Law Dictionary