My partner Montserrat Miller is an expert on workforce compliance issues, including compliance with employment eligibility verification requirements (the I-9 form). She also has her own blog at http://www.workforcecomplianceinsights.com/. Compliance with US employment eligibility verification requirements sometimes slips through the cracks for Irish and NI companies with US employees. It shouldn’t, since the penalties for non-compliance are high. Montserrat can help Irish and NI companies navigate these compliance issues, and she’s compiled a list of resources at http://www.workforcecomplianceinsights.com/2017/07/11/how-compliant-is-your-company-with-the-form-i-9-requirements/. Check out the link, and contact Montserrat (or me) with any questions.