first of all you must understand system
1st step In RCB your employer need to demonstrate that how position is existed, how you are selected out all the candidates with the help of advertisements, interviews and salry etc
secondly nomination means business financials and potentials to sponsor you for full time two years
third is visa in which your qualifications and skills like experience tested
I'm not expert its just my understandings , don't know why your lawyer did not apply for RCB at first place
hopefully it will help you