Elizabeth, NJ Immigration Law Firms & Lawyers

Once you are married, you will want to submit papers to the USCIS for your immediate relative spouse. You will first have to file a Petition for an Immigrant family member on Form I-130. Later, you can file for an Adjustment of Status in the U.S. on Form I-485 if she is in the U.S. (and she entered with inspection - which it sounds like she did). Alternatively, your prospective spouse may be able to process for the green card at the U.S. Consulate. Please note that the process for sponsoring a spouse has many nuances and we encourage you to consider hiring a qualified immigration lawyer or attorney with regard to this matter. One particular nuance has to do with the planning or filing of the Affidavit of Support Form (and associated package).

A US Citizen child over 21 can sponsor mom and dad for green cards if they entered the US legally. This is despite that both are or will be in overstay status. It is not uncommon that the checks for USCIS filing fees have not been cashed after 30 days. There are many backlogs at most field offices so remain patient. 

Unfortunately you will have to enter on a Business Visitor or Visitor's Visa. Neither of these classifications permit you to be an "employee" in the U.S. However, we definitely need more information to properly guide you and your girlfriend. There are a number of nuances associates with the query you have posed and we recommend that you speak to a qualified immigration law practitioner in this regard.