Use the current USCIS fee schedule on Form G-1055 for the Form I-129 base fee, the fraud-prevention and asylum-program fees that apply to L petitions, and optional premium processing. Add legal, translation and the cost of the Canadian replacement manager.
The replacement manager is the largest line, not the fee
Government fees for an L-1A petition are set out in the USCIS fee schedule and change; the petitioner should read Form G-1055 the week it files rather than rely on a figure copied from a website. The fee categories to expect for a Form I-129 L petition are the base filing fee, the fraud prevention and detection fee, the asylum program fee, and, if the season requires a fast answer, premium processing. All of these are the employer's costs.
A small drainage contractor should also budget for certified translations of French corporate records and for the professional preparation of a file that, in an owner's case, has to explain both companies in detail. The expense the owner usually forgets is the one that keeps the case alive: the salary of the operations manager who must run Sainte-Anne-de-la-Pérade while he is away. Without that person, the doing-business requirement fails regardless of what is paid to USCIS.