Finding work when arriving

That would be a Mexican Consulate near you that you apply for a Visa

Your first Temporal Visa will be for one year.  After that you can renew for 1,2 or 3 years.  After 4 years on Temporal you have to go Permanente which you don't renew

Thank you. It's a couple of hours away to go see the consulate again. I can't remember what they said about the question but I think that it was along the lines of having to apply for a work visa..or permit or something.

Ask your Mexican consulate or Embassy. Expect to leave and message and they will call you back. On your phone message leave best time for return calls. It is very unlikely you will get someone on the phone. They like to return calls not take calls. I teach English as a second language here in San Luis Potosi, MX so I have a work permit. Owning a business is different. Also, try Google. Mexico is not a lot different than Canada and USA in terms of government process. The Mexicans are actually more organized than USA and the Embassy staff far smarter and nicer.

Once you have a Visa you can convert it to a working Visa.  But to start off with a working Visa you need a job offer and a cooperative employer that will work with Immigration