Can someone bring very large (more than $10,000) sums of money from Canada to the US?

Is there an immigration related issue somewhere in there? You can bring money in and declare it at the custom, that's about it. Goodluck.

The amounts under $10,000 may be brought to the United States without being declared, however, any cash funds, financial instruments, checks, bonds, security papers in excess of that amount must be declared at US Customs with a document stating their legal origin in your home country. You may contact the US Customs for further information on any specific documents they may require for the stated amounts to be brought in the U.S. legally. DISCLAIMER The answer given above by the lawyer serves for educational purposes only and provides general information and a basic understanding of the applicable law. Take notice that the answer above does not create an attorney-client relationship as this website is not intended to provide anyone a specific legal advice. Anyone using the site expressly consents that there is no attorney client privilege between any person and any attorney responding. Further take notice that the site should not be used as a crude substitute for any professional and competent legal advice by a licensed professional attorney in the applicable jurisdiction. The attorney above attempted to provide competent professional information, however, the law and its applications may change frequently and vary greatly from other U.S. jurisdictions and locales. Therefore, any information and materials provided above are general in nature, and may not apply to specific factual and legal circumstances related to one’s personal legal issues. Contact an experienced criminal defense lawyer admitted to practice in your State under an attorney-client privilege to further receive a competent legal advice before making any important decisions about your particular legal issue. For further inquiries please contact: Attorney Alexander Ivakhnenko 773-562-8602 http://alexanderivakhnenko.com