September 12, 2003


Centrex Inc.
9202 South Toledo Ave.
Tulsa, OK 74117


Ladies and Gentlemen:

         You have requested my opinion with respect to certain matters in
connection with the filing by Centrex Inc. (the "Company") of a Registration
Statement on Form S-8 (the "Registration Statement") with the Securities
Exchange Commission covering the offering of up to 9,200,000 shares of the
Company's Common Stock, $0.001 par value under various Consulting Agreements.

         In connection with this opinion I have examined the Registration
Statement and related Prospectus, the Company's Article of Incorporation and
By-Laws, and such other documents, records, certificates, memoranda and other
instruments I have deemed necessary as a basis for this opinion. I have relied
upon the accuracy of the factual information provided to me by the Company and
upon the accuracy of the representations and undertakings set forth in the
Registration Statement. I have assumed the genuineness and authenticity of all
documents submitted to me as originals, and the due execution and delivery of
all documents, where due execution and delivery are a prerequisite to the
effectiveness thereof.

         On the basis of the foregoing, and in reliance thereon, I am of the
opinion that the shares, when sold and issued in accordance with the Consulting
Agreements, will be validly issued, fully paid and nonassessable.

         I am furnishing this opinion letter to you solely for your benefit in
connection with the registration statement referenced herein. I disclaim any
obligation to update this opinion letter for changes of fact, law or otherwise.






         I hereby consent to the filing of this opinion letter as an exhibit to
the Registration Statement. In giving this consent, I do not thereby concede
that I am within the category of persons whose consent is required under the
Securities Act of 1933 as amended, or the Rules and Regulations thereunder.

Very Truly Yours,

/s/ RONALD C. KAUFMAN

Ronald C. Kaufman
Kaufman & Associates, PLLC


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