Immigration lawyer VS immigration intermediary

What are the difficulties in applying for employer-sponsored immigration?

To find a suitable employer who is willing to guarantee, the employer must meet the guarantee qualifications (company size, personnel structure, operating conditions, etc.). );

Employers must prove to the Immigration Bureau that there are real job vacancies in their enterprises;

The position guaranteed by the employer must be related to the applicant's education and work;

If it is self-employed, the actual business requirements.