What is the basic procedure for filing an investment based green card case?

A: Whichever investment route you decide to take, whether direct ($1 million) or through an investment center ($500,000), an immigrant petition (Form I-526) must be submitted to USCIS with the appropriate filing fees and detailed documentation proving that the applicant satisfies all regulatory requirements. Once such a petition is approved, the investor must then obtain an immigrant visa either at a U.S. consulate or if they are already in the U.S. then via an application for adjustment of status.

Upon either admission or adjustment of status the applicant is granted a conditional green card valid for a two year period. Then, between 90 days prior to the second year on the conditional green card, and no more than 24 months after such issuance, the applicant must file an application to remove conditions, again with a fee and detailed documents verifying both that the investment has been maintained and that the required number of jobs have been created. Once the application to remove these conditions is approved by USCIS an unconditional permanent residence card is issued.