You must disclose the fact that you have filed the I-526 (all of DHS abnd State Department employees can quickly find out anyway and lying about it will hurt you). You might be denied entry in your situation. CBP could stick you back on a plane and send you back. You can try contacting the Consulate or Embassy to see if they will grant you a B-1 visa for the purpose of monitoring your investment--and maybe they will note this on a visa for you. This would be in accordance with directives from the President and DHS Secretary.