Not necessarily. You can always represent yourself. Lawyers are not always needed and If I remember correctly, are not allowed to represent you in small claims court.
Steve.
In the USA, that only is the case if both parties are in the same state. So, for example, I am in Wisconsin and cannot file against some party in neighboring Illinois. Of course, I could go after them in Federal District Court. However, you have to be an attorney, rules of the court, and many years ago, I was told, the minimum out of pocket cost just to file was $5000 and the cost goes up from there.
Now, imagine the problems, if I needed to take action against someone in your country, provided its laws allow it. Might involve several law firms on my side to do this.
Then, regardless of any of this, the award, if I won, would probably be restricted to how much gross sales the other party enjoyed, which may be far less that the law suits.
Anyway, you get what you pay for and legal advise from non lawyers is usually worthless.
Disclaimer: I am not a lawyer, and would further state that there are a lot of incompetent lawyers, so choose carefully.