what to do when an you fired your lawyer and he says he going to put an lean on the case

Under Ohio law, an attorney who is discharged by a client has a right to be paid for the reasonable value of the services rendered up to the date of the discharge. With a contigency fee PI case, the right to be paid does not exist until the the contingency occurs, i.e., the case is settled.  Generally, the lawyer needs to provide an itemized bill for time spent and expenses incurred.  If the lawyer writes the insurance company that he/she has a lien for fees and expenses, then most insurance companies will honor the lien to the extent of including the lawyer as a joint payee on the settlement check. Your new attorney may be able to work out a deal with your old lawyer, or, upon settlement, then you can request fee mediation/arbitration through your local bar association.