Yes, Mexico is one of the most important business and trade partners of the United States.
For example, the United States is the source of 49% of all of Mexico's Foreign Direct Investment (FDI) for 2012. Conversely, Mexico is the origin of 2% of the FDI that enters the United States' economy.
In terms of trade, 51% of all imports going to Mexico have the United States as origin, while Mexico qualifies as the source of 13% of total imports for the United States.
Maybe on soccer. Besides that, Mexico is considered to be a business partner of the United States.
The US, followed by China and Japan.
Because 76.5% of its exports go to the United States; conversely, 55.5% of Mexico's imports come from the US.
Mexico is one of America's largest neighbours, sharing the second largest border with the US. They are the third largest trading partner of the US after Canada and China.
Your best bet is to have a shared account between partners in the US and Mexico. For example, Citibank is partner with Banamex. Bank of America with Santander. And so on.
Banamex is a privately owned bank, whose main partner in the US would be Citibank.
He or she could, but his or her partner must make the appropriate arrangements so that she or he acquires the US citizenship. Namely, contacting the American embassy in Mexico and begin such legal process.
The United States
The United States is Mexico's main trade partner, both in terms of exports as well as imports; it is the destination of 81% ($303 billion) of Mexico's exports, and it is the origin of 47% ($180 billion) of Mexico's total imports (2016).
Mexico is south of the US. consequently the US is north of Mexico
All you and your partner are willing to have. There is no restriction on such matters.
United States.