Ashwin Sharma quoted by Canadian news magazine Macleans regarding the Dual-Citizenship held by one of the candidates for Canadian Prime Minister
Link to article: https://www.macleans.ca/politics/andrew-scheer-canadas-first-american-prime-minister/
Can I re-enter the U.S. with a valid I-94 and expired visa? – Automatic revalidation for certain temporary visitors
Canadian visa for single entry (Photo credit: Wikipedia)
VIA CBP.GOV
Under the automatic revalidation provision of immigration law, certain temporary visitors holding expired nonimmigrant visas who seek to return to the U.S. may be admitted at a U.S. port of entry by Customs and Border Protection (CBP), if they meet certain requirements, including, but not limited to the following:
A nonimmigrant who departed the U.S. for brief travel to Canada, Mexico, or an adjacent islands (for F and J nonimmigrant) for thirty days or less;
Nonimmigrant who have changed their nonimmigrant status (for F and J nonimmigrant) to another nonimmigrant status through U.S. Citizenship and Immigration Services (USCIS) and has a valid (unexpired) Form I-94, Arrival-Departure Record, endorsed by DHS can travel to Canada, Mexico or an adjacent island for thirty days or less.
Nonimmigrant who is eligible to re-enter the U.S. pursuant to the authority of automatic revalidation is not able to benefit from the automatic revalidation process if the passport of the nonimmigrant reflects evidence that while in a contiguous territory or on an adjacent island the nonimmigrant applied for a new visa and is pending a decision or has been denied a new visa application.
For more information about automatic revalidation provisions and reentry to the U.S. visit the Automatic Revalidation Fact Sheet on page 18 of the Carrier Information Guide on CBP.gov. Note: Carrier Information Guide is currently being updated to accurately reflect the countries listed below.
Nationals of Cuba, Iran, Sudan and Syria are not eligible for automatic revalidation of an expired visa.
The U.S. Immigration Law Blog by Ashwin Sharma 
Quoted in CBC article on Canada’s Successful Tech Strategy in which it Outsmarted the U.S. by Poaching 10,000 STEM H-1B Visa Holders in Less Than 48 Hours
“At the very least, Canadians have brought to light the fact that there are other, smarter countries with better immigration policies that actually value science, technology, engineering and math,” said immigration lawyer Ashwin Sharma of the Sharma Law Office in Jacksonville, Fla.
“Perhaps the U.S. will start doing the same.”
Sharma also acknowledged that the open nature of the Canadian work permit, coupled with the higher salaries generally on offer in U.S. tech industries, may mean that not all applicants are looking to move to Canada on a long-term basis.
“It could be that the H1-B workers are coming over for a short period of time to perhaps kill off some unemployment period of time,” he said.
“It remains to be seen how many will remain in Canada.”
Continue to CBC Article