Do you know if it necessary to have the minimus TOEFEL or IELTS level while applying for the LLM or at the moment of the definitive enrolment?

What about job prospectives at the end of the LLM course? I mean, do you think that a foreing student, aged 29-30 y.o., has some possibility of getting a job in a English law firm?

Thanks a lot for the help

Olga