Hi again,
In the Turkish Legal system all the lawyers are equal(no barrister and solicitor) and have to register to a certain authority called TBB. If not than he is not only unable to act on behalf of you in a session but also can not counsel you as a lawyer.
I think google will be suitable for you to find English articles on various fields of law.
The length of keeping the bills changes according to the situation.I have to check the regulations in order to response you certainly.

Nobody can speculate about an end of any case before it starts. Even me, as a lawyer considering your case for few times can not due to no paper was read by me. I strongly recommend to counsel a professional.