How do I get a Brazilian woman a US green card/work visa without having to propose?

So I met my dream woman the other day online. She was in town for about a month visiting her brother who has become an American Citizen and lives only a few minutes down the street. After a couple of e-mail exchanges we decide to grab a coffee together. Coffee became dinner, and dinner became several dates over the 2 weeks she had left in the country until she had to head back to Brazil for her work.

We’re keeping in touch via e-mail, and she wants to move to the US as soon as she gets the opportunity, but I’ve got the worst case of puppy-love I think I’ve ever had (and I’m 27 lol). Any thoughts on some strategies for getting her a US job HB-1 Visa style or some other method—as much as I like her, I think marriage might be a BIT premature, but any other thoughts would be awesome.

Oh, I should mention that she has a college degree in business administration and works for a bank, but I think her current job is more secretarial in nature to be honest.