A good lawyer advocates. A real lawyer's task is to properly

A good lawyer advocates. A real lawyer's task is to properly advocate for his client even if he/she does not agree with his/her client's position. Being a fine lawyer demands a true understanding of one's client(s) case, issues, and facts and having the mental acuity to 
1) find and review old case law (precedent) in your client's favor based on your client's fact pattern. 
2) critically analyze (compare and contrast)  your client's facts to the facts of precedent cases and ...
嗬嗬！說了半天還沒完，More will be arriving.