Exhibit 31.1

CERTIFICATION PURSUANT TO 
18 U.S.C. SS 1350, AS ADOPTED PURSUANT TO 
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, C. Leo Smith, certify
that:

1.  I have reviewed this quarterly report on Form 10-Q of Osler
Incorporated;

2.  Based on my knowledge, this report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge,
the financial statements, and other financial information included in this
report, fairly present in all material respects the financial condition,
results of operations and cash flows of the registrant as of, and for, the
periods presented in this report;

4. The registrants other
certifying officer(s) and I are responsible for establishing and maintaining
disclosure 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) and 15d-15(f)) for the registrant and have:

|    |                                                                                                                                                                                                                                                                                                                                                                                              
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|(a) | Designed such disclosure controls and procedures, or
  caused such disclosure controls and procedures to be designed under our
  supervision, to ensure that material information relating to the registrant,
  including its consolidated subsidiaries, is made known to us by others within
  those entities, particularly during the period in which this report is being
  prepared;     
|    |                                                                                                                                                                                                                                                                                                                                                                                              
|(b) | Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;                      
|    |                                                                                                                                                                                                                                                                                                                                                                                              
|(c) | Evaluated the effectiveness of the registrants
  disclosure controls and procedures and presented in this report our
  conclusions about the effectiveness of the disclosure controls and
  procedures, as of the end of the period covered by this report based on such
  evaluation;                                                                                                      
|    |                                                                                                                                                                                                                                                                                                                                                                                              
|(d) | Disclosed in this report any change in the
  registrants internal control over financial reporting that occurred during
  the registrants most recent fiscal quarter (the registrants fourth fiscal
  quarter in the case of an annual report) that has materially affected, or is
  reasonably likely to materially affect, the registrants internal control
  over financial reporting;

5. The registrants other
certifying officer(s) and I have disclosed, based on our most recent evaluation
of internal control over financial reporting, to the registrants auditors and
the audit committee of the registrants board of directors (or persons
performing the equivalent functions):

|    |                                                                                                                                                                                                                                                                                  
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|(a) | All significant
  deficiencies and material weaknesses in the design or operation of internal
  control over financial reporting which are reasonably likely to adversely
  affect the registrants ability to record, process, summarize and report
  financial information; and

|    |                                                                                                                                                                               
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|(b) | Any fraud, whether or not
  material, that involves management or other employees who have a significant
  role in the registrants internal control over financial reporting.

|                                         | 
|---------------------------------------- | 
|Dated: February 9, 2010                  | 
|                                         | 
|/s/ C. Leo Smith                         | 
|                                         | 
|C. Leo Smith                             | 
|President, Chief Executive
  Officer and | 
|Chief Financial Officer                  | 

---