Exhibit 1.1

Oaktree Specialty Lending Corporation

Shares of Common Stock, par value $0.01 per share

Third Amendment to the

Equity Distribution Agreement

This Third Amendment, dated August 2, 2024 (the “Amendment”), is to that certain Equity Distribution Agreement, dated February 7, 2022, by and among Oaktree Specialty Lending Corporation, a Delaware corporation (the “Company”), Oaktree Fund Advisors, LLC, a Delaware limited liability company (the “Adviser”), and Oaktree Fund Administration, LLC, a Delaware limited liability company (the “Administrator”), on the one hand, and the placement agents party thereto, which as of the date hereof include Keefe, Bruyette & Woods, Inc., Citizens JMP Securities, LLC, Jefferies LLC, and Raymond James & Associates, Inc. (each, a “Placement Agent” and collectively, the “Placement Agents”), on the other hand (as amended on February 9, 2023 and August 8, 2023, the “Equity Distribution Agreement”).

WHEREAS, the Company, the Adviser, the Administrator and the Placement Agents desire to amend certain provisions of the Equity Distribution Agreement, including to increase the aggregate offering price of the Common Stock that the Company may issue and sell through the Placement Agents, each acting as agent and/or principal, from $146,049,000 to $321,049,000 (which amount shall include all of the Shares previously sold pursuant to the Equity Distribution Agreement to date) and to make certain other changes to the Equity Distribution Agreement with effect on and after the date hereof.

NOW THEREFORE, in consideration of the mutual promises contained in this Amendment and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties to this Amendment, intending to be legally bound, hereby amend the Equity Distribution Agreement and agree as follows:

1. Amendments to the Preamble. The first sentence of the first paragraph of the Preamble of the Equity Distribution Agreement is amended and restated as follows:

Oaktree Specialty Lending Corporation, a Delaware corporation (the “Company”), Oaktree Fund Advisors, LLC, a Delaware limited liability company (the “Adviser”), and Oaktree Fund Administration, LLC, a Delaware limited liability company (the “Administrator”), each confirms its agreement (this “Agreement”) with Keefe, Bruyette & Woods, Inc., Citizens JMP Securities, LLC, Jefferies LLC and Raymond James & Associates, Inc. (each, a “Placement Agent” and collectively, the “Placement Agents”) as follows:

2. Amendments to Section 1. The first sentence of the first paragraph of Section 1 of the Equity Distribution Agreement is amended and restated as follows:

Each of the Company, the Adviser and the Administrator agrees that, from time to time during the term of this Agreement, on the terms and subject to the conditions set forth herein, the Company may issue and sell through Placement Agents, each acting as agent and/or principal, shares of the Company’s common stock, $0.01 par value per share (the “Common Stock”), having an aggregate offering price of up to $321,049,000 (the “Maximum Amount”).

3. Amendments to Section 6(b). Section 6(b) of the Equity Distribution Agreement is amended and restated as follows:

Settlement of Placement Securities. Unless otherwise specified in the applicable Placement Notice (as amended by the corresponding Acceptance, if applicable), settlement for sales of Placement Securities will occur on the first (1st) Trading Day following the date on which such sales are made or such other date as may be mutually agreed by the Company and the Designated Agent (each, a “Settlement Date”). The amount of proceeds to be delivered to the Company on a Settlement Date against receipt of the Placement Securities sold (the “Net Proceeds”) will be equal to the aggregate sales price received by the Designated Agent at which such Placement Securities were sold, after deduction for (i) the Designated Agent’s commission, discount or other compensation for such sales payable by the Company pursuant to Section 2 hereof and (ii) any transaction fees imposed by any governmental or self-regulatory organization in respect of such sales.

4. Amendments to Section 13. Section 13 of the Equity Distribution Agreement is amended and restated as follows:

All statements, requests, notices and agreements hereunder shall be in writing, and if to the Placement Agents shall be delivered or sent by mail or overnight mail to: Keefe, Bruyette & Woods, Inc. at 200 Vesey Street, 8th Floor, New York, New York 10281, Attention: Transaction Management, facsimile: 212-658-6137; Citizens JMP Securities, LLC, 600 Montgomery Street, Suite 1100, San Francisco, California 94111, Facsimile: (415) 835-8920, Attention: Equity Securities; Jefferies LLC, 520 Madison Avenue, New York, New York 10022, Attention: General Counsel; and Raymond James & Associates, Inc. at 880 Carillon Parkway, St. Petersburg, Florida 33716, facsimile No. (901) 579-4891 and (727) 567-8750, Attention: Larry M. Herman, Managing Director/Financial Services Investment Banking and Thomas Donegan, General Counsel/Global Equities & Investment Banking, with a copy to Dechert LLP, 1900 K Street NW, Washington, DC 20006, Attention: Matthew Carter and if to the Company, the Adviser or the Administrator shall be delivered or sent by mail or overnight mail to the Company at 333 South Grand Avenue, 28th Floor, Los Angeles, California 90071, Attention: Secretary, with a copy to Kirkland & Ellis LLP at 1301 Pennsylvania Ave, N.W., Washington, DC 20004, Attention: William J. Tuttle, P.C.

5. Amendments to Exhibit A. The first sentence of the first paragraph of the Preamble of Exhibit A to the Equity Distribution Agreement is amended and restated as follows:

Pursuant to the terms and subject to the conditions contained in that certain Equity Distribution Agreement by and among Oaktree Specialty Lending Corporation (the “Company”), Oaktree Fund Advisors, LLC and Oaktree Fund Administration, LLC, and Keefe, Bruyette & Woods, Inc., Citizens JMP Securities, LLC, Jefferies LLC and Raymond James & Associates, Inc. (as in effect from time to time, the “Agreement”), I hereby request on behalf of the Company that [Designated Agent] sell up to [XXX,XXX] shares (the “Placement Securities”) of the Company’s common stock, par value $0.001 per share, at a minimum market price of $[XX.XX] per share.

6. Amendments to Exhibit D-1. The first sentence of the first paragraph of the Preamble of Exhibit D-1 to the Equity Distribution Agreement is amended and restated as follows:

The undersigned, the [Chief Executive Officer][President][Chief Financial Officer][Chief Operating Officer] of Oaktree Specialty Lending Corporation, a Delaware corporation (the “Company”), pursuant to Section 7(n) of the Equity Distribution Agreement, dated as of February 7, 2022 and amended as of February 9, 2023, August 8, 2023 and August 2, 2024 (as amended, the “Equity Distribution Agreement”), by and among the Company, Oaktree Fund Advisors, LLC, a Delaware limited liability company (the “Adviser”), and Oaktree Fund Administration, LLC, a Delaware limited liability company (the “Administrator”), and Keefe, Bruyette & Woods, Inc., Citizens JMP Securities, LLC, Jefferies LLC and Raymond James & Associates, Inc. (each, a “Placement Agent” and collectively, “Placement Agents”), providing for the offer and sale by the Company to the Placement Agents of shares of the Company’s common stock, par value $0.01 per share, having an aggregate offering price of up to $321,049,000, hereby certify that they are authorized to execute this Officers’ Certificate in the name and on behalf of the Company.

7. Consent to Amendment. Each of the Company, the Adviser, and the Administrator and the Placement Agents by the execution of this Amendment, hereby consent to the amendments, modifications and supplements to the Equity Distribution Agreement contemplated herein.

8. No Other Amendments. No other amendments to the Equity Distribution Agreement are intended by the parties hereto, are made, or shall be deemed to be made, pursuant to this Amendment, and all provisions of the Equity Distribution Agreement, including all annexes and exhibits thereto, unaffected by this Amendment shall remain in full force and effect.

9. Governing Law. THIS AMENDMENT, AND ANY CLAIM, CONTROVERSY OR DISPUTE RELATING TO OR ARISING OUT OF THIS AMENDMENT, SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK

10. Capitalized Terms. Capitalized terms used but not defined herein shall have the meanings assigned to such terms in the Equity Distribution Agreement.

11. Counterparts. THIS AMENDMENT MAY BE EXECUTED BY ANYONE OR MORE OF THE PARTIES HERETO IN ANY NUMBER OF COUNTERPARTS, EACH OF WHICH SHALL BE DEEMED TO BE AN ORIGINAL, BUT ALL SUCH COUNTERPARTS SHALL TOGETHER CONSTITUTE ONE AND THE SAME INSTRUMENT. Counterparts may be delivered via facsimile, electronic mail (including any electronic signature covered by the U.S. federal ESIGN Act of 2000, Uniform Electronic Transactions Act, the Electronic Signatures and Records Act or other applicable law, e.g., www.docusign.com) or other transmission method and any counterpart so delivered shall be deemed to have been duly and validly delivered and be valid and effective for all purposes.

If the foregoing is in accordance with your understanding, please sign and return to us a counterpart hereof, and upon the acceptance hereof by each of you, this Agreement and such acceptance hereof shall constitute a binding agreement among each of you, the Company, the Adviser and the Administrator.

[Signature pages to follow]

[Signature Page to Third Amendment to Equity Distribution Agreement]

[Signature Page to Third Amendment to Equity Distribution Agreement]

Exhibit 5.1

		1301 Pennsylvania Avenue, N.W. Washington, D.C. 20004 United States		Facsimile: +1 202 389 5200

+1 202 389 5000

www.kirkland.com

August 2, 2024

Oaktree Specialty Lending Corporation

333 South Grand Avenue, 28th Floor

Los Angeles, CA 90071

We are issuing this opinion in our capacity as special legal counsel to Oaktree Specialty Lending Corporation, a Delaware corporation (the “Company”), in connection with the proposed issuance by the Company of shares of common stock, par value $0.01 per share, of the Company with an aggregate offering price of up to $321,049,000 (the “Shares”) pursuant to (i) the Registration Statement on Form N-2 (Registration No. 333-269628) filed with the Securities and Exchange Commission on February 7, 2023 (as such registration statement is amended or supplemented, the “Registration Statement”) and (ii) the prospectus supplement to the prospectus contained in the Registration Statement (as supplemented on August 8, 2023 and the date hereof, the “Prospectus Supplement”).

In connection therewith, we have examined originals, or copies certified or otherwise identified to our satisfaction, of such documents, corporate records and other instruments as we have deemed necessary for the purpose of this opinion, including (i) the organizational documents of the Company, (ii) minutes and records of the corporate proceedings of the Company with respect to the issuance and sale of the Shares, (iii) the Registration Statement and (iv) the Prospectus Supplement.

For purposes of this opinion, we have assumed the authenticity of all documents submitted to us as originals, the conformity to the originals of all documents submitted to us as copies and the authenticity of the originals submitted to us as copies. We have also assumed the legal capacity of all natural persons, the genuineness of the signatures of persons signing all documents in connection with which this opinion is rendered, the authority of such persons signing on behalf of the parties thereto other than the Company, and the due authorization, execution and delivery of all documents by the parties thereto other than the Company. As to any facts material to the opinions expressed herein which we have not independently established or verified, we have relied upon statements and representations of officers and other representatives of the Company and others.

Oaktree Specialty Lending Corporation

August 2, 2024

Page 2

Based upon and subject to the assumptions, qualifications and limitations identified in this opinion, we are of the opinion that when that certain equity distribution agreement, dated February 7, 2022 (as amended on February 8, 2023, August 8, 2023 and the date hereof, the “Equity Distribution Agreement”), by and among the Company, Oaktree Fund Advisors, LLC, a Delaware limited liability company, Oaktree Fund Administration, LLC, a Delaware limited liability company, and the placement agents party thereto, which as of the date hereof include Keefe, Bruyette & Woods, Inc., Citizens JMP Securities, LLC, Jefferies LLC and Raymond James & Associates, Inc., is duly executed and delivered by the parties thereto and the Shares are registered by the Company’s transfer agent and delivered against payment of the agreed consideration therefor, all in accordance with the Equity Distribution Agreement, the Shares will be validly issued, fully paid and nonassessable.

Our opinion expressed above is subject to the qualification that we express no opinion as to the applicability of, compliance with, or effect of any laws except the General Corporation Law of the State of Delaware (including the statutory provisions, all applicable provisions of the Delaware constitution and reported judicial decisions interpreting the foregoing).

We do not find it necessary for the purposes of this opinion, and accordingly we do not purport to cover herein, the application of the securities or “Blue Sky” laws of the various states to the issuance of the Shares.

This opinion is limited to the specific issues addressed herein, and no opinion may be inferred or implied beyond that expressly stated herein. This opinion speaks only as of the date hereof, and we assume no obligation to revise or supplement this opinion should the General Corporation Law of the State of Delaware be changed by legislative action, judicial decision or otherwise after the date hereof.

We hereby consent to the filing of this opinion with the Securities and Exchange Commission as an exhibit to the Company’s Current Report on Form 8-K filed with the Securities and Exchange Commission on or about the date hereof. We also consent to the reference to our firm under the heading “Legal Matters” in the Prospectus Supplement. In giving this consent, we do not thereby admit that we are in the category of persons whose consent is required under Section 7 of the Securities Act of 1933, as amended, or the rules and regulations of the Securities and Exchange Commission.