Only if it serves a genuine need; a certificate is not an automatic qualification for L-1B. Assess the evidence of knowledge already acquired and applied.
Distinguish a business investment from an immigration claim
Ask what the course teaches and whether it addresses the company-specific knowledge relevant to the assignment. Do not present future education as past experience. Keep training costs separate from current government fees and professional review, and avoid spending on credentials that do not explain the actual special or advanced knowledge.
Confirm the fourteen months are clean, assemble the knowledge record, obtain the corporate documents linking the Canadian company and the U.S. affiliate, then file Form I-129 with the fee-schedule amounts; premium processing is available. USCIS does not charge a different fee based on how the specialized-knowledge case is argued, and the petition still follows the standard Form I-129 fee structure under the current fee schedule, Form G-1055, which should be verified before filing since amounts change.