Hello Javier. I must say your question doesn't speak well of your principal broker or their operation. This is a basic question and while I welcome you to the profession, I am also a bit disturbed that you ask it in this forum. Talk to your broker and other agents in your office or seriously consider getting out of that office. This is a highly competitive business. Don't expect anyone here to do what your own office seems unable to do. I do wish you good luck.
I think what you are asking is how to get an exclusive listing? You would need to consult your broker who will tell you what your office, the MLS and the state requires.
Good luck, wishing you many exclusive listings!