The L-Visa is a nonimmigrant visa is a mechanism by which companies are able to provisionally move foreign employees, managers and exceptionally qualified executives to their U.S. based businesses. L-1 Visas are typically only valid for a short amount of time, ranging from 3 months to 5 years depending on what country the Applicant is from.
I had a call from a Canadian citizen yesterday. He called because he was barred from entering the U.S. after he told the CBP officer at the Toronto International Airport pre-clearance (https://torontopearson.com/en/Preclearance/#) that the purpose for his visit was to open a U.S. bank account in NY. I probed and got more facts and concluded that the CBP officer was probably correct in his assessment. Thus, the problem!