foreign aircraft

Hi All,

I have been looking for my first aircraft, and I came across one that looked
promising, except that it is registered outside the U.S.

Is this something that I should completely avoid?

How do you go about getting it registered in the U.S.?

Are there certain countries that are better than others (ie. a drug cartel
plane from Columbia vs. a plane from Canada)?

The plane is in Portugal. The seller is paying for freight.

Should I investigate or run the other way?

Thanks,

Adam