Without further evidence supported, USCIS cannot determine whether Father earned sufficient lawful income to accumulate and retain the EB-5 investment funds as well as covering the living expenses for him and his family. Going on record without supporting documentary evidence is not sufficient for purposes of meeting the burden of proof in these proceedings. Matter of Soffici, 22 I&N Dec. at 165 (citing Matter of Treasure Craft of California, 14 I&N Dec. at 190).