Responsible person for imported goods: the role has to sit inside the single market

For an annual fee you become the economic operator established inside the single market who answers for someone else's product: you verify that the declaration of conformity and the technical file were actually drawn up, take custody of them, keep them available for the full statutory period and act as the contact point for enforcement authorities. The income is recurring and tied to the product rather than to billed hours. Two things decide whether this is open to you: where you are established, and whether you can turn away the sellers who have no technical file at all, because accepting one means standing behind goods you have never seen.