**EXHIBIT8****CERTIFICATION**I, Donald A. Stewart, Chief Executive Officer of Sun Life Financial Inc, certify that:1. I have reviewed this annual report on Form 40-F of Sun Life Financial Inc.;2. Based on my knowledge, this report does not contain any untrue statement of a material factor omit to state a material fact necessary to make the statements made, in light of thecircumstances under which such statements were made, not misleading with respect to the periodcovered by this report;3. Based on my knowledge, the financial statements, and other financial information included inthis report, fairly present in all material respects the financial condition, results ofoperations and cash flows of the issuer as of, and for, the periods presented in this report;4. The issuer’s other certifying officer and I are responsible for establishing and maintainingdisclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e))and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and15d-15(f)) for the issuer and have: (a) Designed such disclosure controls and procedures, or caused such disclosure controlsand procedures to be designed under our supervision, to ensure that material informationrelating to the issuer, including its consolidated subsidiaries, is made known to us byothers within those entities, particularly during the period in which this report is beingprepared;  (b) Designed such internal control over financial reporting, or caused such internalcontrol over financial reporting to be designed under oursupervision, to provide reasonableassurance regarding the reliability of financial reporting and the preparation of financialstatements for external purposes in accordance with generally accepted accountingprinciples;  (c) Evaluated the effectiveness of the issuer’s disclosure controls and procedures andpresented in this report our conclusions about the effectiveness of the disclosure controlsand procedures, as of the end of the period covered by this report based on suchevaluation; and  (d) Disclosed in this report any change in the issuer’s internal control over financialreporting that occurred during the period covered by the annual report that has materiallyaffected, or is reasonably likely to materially affect, the issuer’s internal control overfinancial reporting; and5. The issuer’s other certifying officer(s) and I have disclosed, based on our most recentevaluation of internal control over financial reporting, to the issuer’s auditors and theaudit committee of the issuer’s board of directors (or persons performing the equivalentfunctions): (a) All significant deficiencies and material weaknesses in the design or operation ofinternal control over financial reporting which are reasonably likely to adversely affectthe issuer’s ability to record, process, summarize and report financial information; and  (b) Any fraud, whether or not material, that involves management or other employees whohave a significant role in the issuer’s internal control over financial reporting.Date: February 14, 2008           /S/ “Donald A. Stewart”    Donald A. Stewart    Chief Executive Officer   
 

 
**CERTIFICATION**I, Richard P. McKenney, Chief Financial Officer of Sun Life Financial Inc., certify that:1. I have reviewed this annual report on Form 40-F of Sun Life Financial Inc.;2. Based on my knowledge, this report does not contain any untrue statement of a material factor omit to state a material fact necessary to make the statements made, in light of thecircumstances under which such statements were made, not misleading with respect to the periodcovered by this report;3. Based on my knowledge, the financial statements, and other financial information included inthis report, fairly present in all material respects the financial condition, results ofoperations and cash flows of the issuer as of, and for, the periods presented in this report;4. The issuer’s other certifying officer and I are responsible for establishing and maintainingdisclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e))and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and15d-15(f)) for the issuer and have: (a) Designed such disclosure controls and procedures, or caused such disclosure controlsand procedures to be designed under our supervision, to ensure that material informationrelating to the issuer, including its consolidated subsidiaries, is made known to us byothers within those entities, particularly during the period in which this report is beingprepared;  (b) Designed such internal control over financial reporting, or caused such internalcontrol over financial reporting to be designed under our supervision, to providereasonable assurance regarding the reliability of financial reporting and the preparationof financial statements for external purposes in accordance with generally acceptedaccounting principles;  (c) Evaluated the effectiveness of the issuer’s disclosure controls and procedures andpresented in this report our conclusions about the effectiveness of the disclosure controlsand procedures, as of the end of the period covered by this report based on suchevaluation; and  (d) Disclosed in this report any change in the issuer’s internal control over financialreporting that occurred during the period covered by the annual report that has materiallyaffected, or is reasonably likely to materially affect, the issuer’s internal control overfinancial reporting; and5. The issuer’s other certifying officer(s) and I have disclosed, based on our most recentevaluation of internal control over financial reporting, to the issuer’s auditors and theaudit committee of the issuer’s board of directors (or persons performing the equivalentfunctions): (a) All significant deficiencies and material weaknesses in the design or operation ofinternal control over financial reporting which are reasonably likely to adversely affectthe issuer’s ability to record, process, summarize and report financial information; and (b) Any fraud, whether or not material, that involves management or other employees whohave a significant role in the issuer’s internal control over financial reporting.Date: February 14, 2008           /S/ “Richard P. McKenney”    Richard P. McKenney    Chief Financial Officer