Can I convert my tourist visa to a working visa while I am in the Ontario, Canada?

Are you talking about a working visa for the US or for Canada.

When you are outside the U.S., you cannot convert your visa. Rather, you would apply for the visa once approved in the U.S. *H-1B Specialty Occupation Visa* You qualify for what is known as the H-1B Specialty Occupation Visa. You will need to have an employer agree to sponsor you for a job. It does not need to be a full-time position, but it should be related to your degree. Our firm can do the entire petition. Once we begin processing and get it filed, it normally takes about six to nine months to get the approval. Please note that H-1B's are very limited and are only available for small periods of time during the year. Therefore, Premium Processing discussed next should be used. If you want a work permit in an expedited manner, you can take advantage of the Premium Processing program at USCIS. This will allow you to have the expedited answer in less than one month. You will need to add $1,500.00 to the cost below for Premium Processing. There are only a limited number of H-1B's and it must be filed by April 1. However, it is still possible it will not get selected for this years allotment.

It is possible but more info is needed.

To get a working visa, you need an employer willing to sponsor you and a set of skills and/or academic credentials qualifying you for a particular visa. Having a tourist visa does not enhance your ability to get a work visa, and it hardly matters where you are at the moment (so long as you are not in the U.S. without any legal status - that would present a problem).

If you have a valid I-797 approval notice for the applicable employment visa and are either a resident of Canada or the US Consulate in Canada gives you permission to apply for the visa as a third-party foreign national than yes. Canadian Nationals generally do not need to apply for a visa stamp at a consulate and can receive the appropriate employment visa at the Port of Entry at the border or in the airport. You should contact your immigration attorney for further information.

I think that the best advice I could give you would be to schedule a consultation with an attorney. While a petition to obtain certain categories of non-immigrant visas can be started while the beneficiary of the visa application is outside of the US, one cannot "convert" one category to another if not physically present in the US. I would suggest that the best approach is to discuss your situation with a knowledgeable attorney and see if you are indeed qualified to obtain some type of non-immigrant visa which would permit you to obtain work in the US.

You can't apply for a change of status or convert your visa outside of the US, but you can submit a separate application for a work visa there.