Proving the lawful source of investment funds can be done with many different types of documentation, including but not limited to tax returns, salary reports, or investment reports. Preparing the full investor package for an I-526 petition is best served with the guidance and representation of an experienced EB5 attorney, like those at our law firm, who can review all possible sources of funds and the best information and documentation to use to authenticate them.
Your question calls for the assistance of an experienced EB-5 Attorney.Your parents can gift the money to you. However you will have to prove you are a qualified investor who has a net worth of USD $1 million dollars. While your parents have to prove and authenticate the legal source of the investment funds. There are many ways to show the lawful source of funds by either primary or secondary evidence.