Is there a lawyer who files a lawsuit first and pays the money later?

Yes, that's the risk agency. It refers to a special entrusted litigation agent between the client and the parties. The principal does not pay the agency fee in advance, and the fee is paid by the agent in advance. After the execution of the case, the client pays a certain percentage of the creditor's rights to the agent as a reward. If the case is lost or the execution fails, the agent will not get any return and will not be able to recover the prepaid expenses; If the creditor's rights are executed in place, the client will pay the agent according to the agreed high proportion, which will be risky for both parties.