All good questions, responded to in order: - it can be enough if one meets 3 of the criteria but even if one meets 3 criteria there's an additional subjective

All good questions, responded to in order: - it can be enough if one meets 3 of the criteria but even if one meets 3 criteria there's an additional subjective requirement of extraordinary ability but in my experience, if one clearly meets 3, his or her application will be approved - the legal standard is a preponderance of the evidence but the actual standard as applied is pretty inconsistent and can seem arbitrary but even with this, in my experience, if the case is strong, it's rare that an application isn't approved. - sorry but I can't answer tax related questions - the EB1A category is current for all nationalities and at present the entire process (which can include the spouse) can take as little as 3 months and as long as 8 months (excluding RFEs) - see response to previous text but the range can be wide, on average $5,000 to $15,000