CERTIFICATIONS PURSUANT TO SECTION 906 OF
THE SARBANES-OXLEY ACT OF 2002
I, David B. Perkins, Principal Executive Officer of Hatteras Multi-Strategy TEI Institutional Fund, LP, certify to the best of my knowledge that:
1. The N-CSR of the registrant for the period ended September 30, 2008 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
2 The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the registrant.
Date: December 1, 2008
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| | /s/ David B. Perkins | |
| | David B. Perkins, President & Chief Executive Officer | |
| | (principal executive officer) | |
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I, J. Michael Fields, Principal Financial Officer of Hatteras Multi-Strategy TEI Institutional Fund, LP, certify to the best of my knowledge that:
1. The N-CSR of the registrant for the period ended September 30, 2008 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the registrant.
Date: December 1, 2008
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| | /s/ J. Michael Fields | |
| | J. Michael Fields, Chief Financial Officer | |
| | (principal financial officer) | |
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A signed original of this written statement required by Section 906 has been provided to Hatteras Multi-Strategy TEI Institutional Fund, LP and will be retained by Hatteras Investment Partners, LLC, and furnished to the Securities and Exchange Commission or its staff upon request.
