Exhibit 5.2

February 29, 2012

First Midwest Bancorp, Inc.,

One Pierce Place, Suite 1500,

Itasca, Illinois 60143.

Ladies and Gentlemen:

I have acted as counsel to First Midwest Bancorp, Inc., a Delaware corporation (the “Company”), in connection with the registration under the Securities Act of 1933 (the “Act”) of an unspecified aggregate amount or number of: (i) shares of common stock, par value $0.01 per share, and the related stock purchase rights to purchase Participating Preferred Stock to be issued pursuant to the Amended and Restated Rights Agreement, dated November 15, 1995, between First Midwest Bancorp, Inc. and First Midwest Bank, as Rights Agent, as amended; (ii) shares of preferred stock, without par value (the “Preferred Stock”); (iii) depositary shares (evidenced by depositary receipts) representing interests in shares of Preferred Stock; (iv) debt securities; (v) warrants; (vi) stock purchase contracts and stock purchase units; and (vii) units composed of the foregoing (collectively, the “Securities”) of the Company.

In my capacity as counsel to the Company, I have examined originals, or copies certified or otherwise identified to my satisfaction, of such documents, corporate records and other instruments, and made such other investigations, as I have deemed necessary or appropriate for the purposes of this opinion. In this examination, I have assumed the genuineness of all signatures, the authenticity of all documents submitted to me as originals, the conformity to original documents of all documents submitted to me as certified, conformed or photostatic copies and the authenticity of the originals of such copies. Based upon the foregoing, I am of the opinion that:

1. The Company is duly incorporated and validly existing under the laws of the State of Delaware.

2. Based on the Certificate of Good Standing of the Company dated February 29, 2012, the Company is in good standing under the laws of the State of Delaware.

I am a member of the bar of the State of Illinois. This opinion relates solely to the General Corporation Law of the State of Delaware, and I express no opinion with respect to the effect or applicability of the laws of any other jurisdiction.

I hereby consent to the filing of this opinion as an exhibit to the registration statement on Form S-3 relating to the Securities and to any reference to this opinion in any prospectus or prospectus supplement under the Registration Statement. In giving such consent, I do not thereby admit that I am in the category of persons whose consent is required under Section 7 of the Act.

Very truly yours,

/s/ Cynthia A. Lance

Cynthia A. Lance

Executive Vice President and Corporate Secretary