What happens if the other party has a lawyer and he doesn't? If appointed by the court, who will bear the expenses? Can the other party bear his own lawyer's fees?

In criminal cases, defenders are appointed for defendants only in some cases, but not in other proceedings. If the other party has a lawyer, you'd better find a lawyer, so you have a better chance of winning. If you win the case, you can ask the other party to pay legal fees and legal fees. If you are the plaintiff, write the claim part of the complaint. The litigation costs are generally borne by the losing party.