The loss of lost time is not the result of coordination between the two parties. Before or during the prosecution, your father should apply to the traffic police force or the court for the third phase appraisal, and the conclusion of the appraisal will be "delayed construction for X days". The standard of lost time is calculated according to this number of days and the actual salary income proved by the injured party.
Generally speaking, the subject matter of traffic accidents is relatively small, and the lawyer's fee is several thousand yuan. Of course, this lawyer's fee can be used as a claim for the loss of the party that caused the accident. The legal fees shall be calculated according to the property case standard in the Supreme People's Court's Standards for Payment of Legal Fees.