At this time, a Service Provider account cannot be a Business Owner/Staff Member of businesses in different countries. The Country selected in your Personal Listing must match the country listed on the business account. Your Country selection setting cannot be edited.
If needed, a Business Owner can create two different locations in different countries by creating second User account and registering it under the country they need. For example business@gmail.com registers under the U.S. for a U.S. location, and a second account using Business+additionalcountry@gmail.com registers in Canada for the second location.