From the U.K. And want to buy in US....HELP!

[Harry Wilson]

I'm originally from England, I am married and so I now have employment authorization, I have conditional permanent residency, and after two years it will be solid permanent residency.

I have been saving and my father also wants to help me buy my first deal, we want to put 100k down payment on a multi family building. 

Am I allowed to own us property? And if not, what can I do to make this work?