Ind. Code § 5-1.3-6-13
A pledge of lease rentals, proceeds of bonds or notes, investment earnings on those proceeds, or other money pledged by the IFA or the NWIRDA is binding from the time the pledge is made. Lease rentals, proceeds of bonds or notes, investment earnings on those proceeds, or other money pledged by the IFA or the NWIRDA and received after the pledge by the IFA or the NWIRDA or its trustee or fiduciary is immediately subject to the lien of the pledge without any further act, and the lien of the pledge is binding against all parties having claims of any kind in tort, contract, or otherwise against the IFA, regardless of whether the parties have notice of the lien. A resolution, trust agreement, or any other instrument by which a pledge is created is required to be filed or recorded only in the records of the IFA.
IC 5-1.3-6-13