**Exhibit 4.21**

**SUPPLEMENTAL INDENTURE NO. 9**

(TOGGLE NOTES) 

Supplemental Indenture No. 9 (this “Supplemental Indenture”), dated as of November 10, 2008, among the new guarantor on thesignature page hereto (the “Guaranteeing Subsidiary”), a subsidiary of Realogy Corporation, a Delaware corporation (the “Issuer”), and The Bank of New York Mellon (formerly known as The Bank of New York), as trustee(the “Trustee”). 

W I T N E S S E T H 

WHEREAS, each of the Issuer and the Note Guarantors (as defined in the Indenture referred to below) has heretofore executed and delivered to the Trustee an indenture (the “Indenture”), dated as ofApril 10, 2007, providing for the issuance of an unlimited aggregate principal amount of 11.00%/11.75% Senior Toggle Notes due 2014 (the “Notes”); 

WHEREAS, Section 4.15 of the Indenture provides that under certain circumstances the Issuer is required to cause the Guaranteeing Subsidiary to execute and deliver to the Trustee a supplemental indenture pursuantto which the Guaranteeing Subsidiary shall unconditionally guarantee all of the Issuer’s Obligations under the Notes and the Indenture on the terms and conditions set forth herein and under the Indenture (the “Guarantee”); and

WHEREAS, pursuant to Section 9.01 of the Indenture, the Guaranteeing Subsidiary and the Trustee are authorized to execute and deliverthis Supplemental Indenture. 

NOW THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receiptof which is hereby acknowledged, the parties mutually covenant and agree for the equal and ratable benefit of the Holders of the Notes as follows: 

(1) Capitalized Terms. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture. 

(2) Agreement to Guarantee. The Guaranteeing Subsidiary hereby agrees as follows: 

(a) Along with all NoteGuarantors named in the Indenture, to jointly and severally unconditionally guarantee to each Holder of a Note authenticated and delivered by the Trustee and to the Trustee and its successors and assigns, irrespective of the validity andenforceability of the Indenture, the Notes or the obligations of the Issuer hereunder or thereunder, that: 

(i) theprincipal of and interest, premium and Additional Interest, if any, on the Notes will be promptly paid in full when due, whether at Stated Maturity, by acceleration, redemption or otherwise, and interest on the overdue principal of and interest onthe Notes, if any, if lawful, and all other Obligations of the Issuer to the Holders or the Trustee hereunder or thereunder whether for payment of principal of, premium, if any, or interest on the Notes and all other monetary obligations of theIssuer under the Indenture and the Notes will be promptly paid in full or performed, all in accordance with the terms hereof and thereof; and 

(ii) in case of any extension of time of payment or renewal of any Notes or any of such other obligations, that same will be promptly paid in full when due or performed in accordance with the terms of the extension orrenewal, whether at stated maturity, by acceleration or otherwise. Failing payment when due of any amount so 

 

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guaranteed or any performance so guaranteed for whatever reason, the Note Guarantors and the Guaranteeing Subsidiary shall be jointly and severally obligatedto pay the same immediately. This is a guarantee of payment and not a guarantee of collection. 

(b) The obligationshereunder shall be unconditional, irrespective of the validity, regularity or enforceability of the Notes, the Indenture or any other Note Guarantee, the absence of any action to enforce the same, any waiver or consent by any Holder of the Noteswith respect to any provisions hereof or thereof, the recovery of any judgment against the Issuer, any action to enforce the same or any other circumstance which might otherwise constitute a legal or equitable discharge or defense of a guarantor.

(c) The following is hereby waived: diligence, presentment, demand of payment, filing of claims with a court in the eventof insolvency or bankruptcy of either of the Issuer, any right to require a proceeding first against the Issuer, protest, notice and all demands whatsoever. 

(d) This Note Guarantee shall not be discharged except by complete performance of the obligations contained in the Notes, the Indentureand this Supplemental Indenture, and the Guaranteeing Subsidiary accepts all obligations of a Note Guarantor under the Indenture. 

(e) If any Holder or the Trustee is required by any court or otherwise to return to the Issuer, the Note Guarantors (including the Guaranteeing Subsidiary), or any custodian, trustee, liquidator or other similar official acting in relationto either the Issuer or the Note Guarantors, any amount paid either to the Trustee or such Holder, this Note Guarantee, to the extent theretofore discharged, shall be reinstated in full force and effect. 

(f) The Guaranteeing Subsidiary shall not be entitled to any right of subrogation in relation to the Holders in respect of any obligationsguaranteed hereby until payment in full of all obligations guaranteed hereby. 

(g) As between the Guaranteeing Subsidiary,on the one hand, and the Holders and the Trustee, on the other hand, (x) the maturity of the obligations guaranteed hereby may be accelerated as provided in Article 6 of the Indenture for the purposes of this Note Guarantee,notwithstanding any stay, injunction or other prohibition preventing such acceleration in respect of the obligations guaranteed hereby, and (y) in the event of any declaration of acceleration of such obligations as provided in Article 6 ofthe Indenture, such obligations (whether or not due and payable) shall forthwith become due and payable by the Guaranteeing Subsidiary for the purpose of this Note Guarantee. 

(h) The Guaranteeing Subsidiary shall have the right to seek contribution from any non-paying Note Guarantor so long as the exercise ofsuch right does not impair the rights of the Holders under this Note Guarantee. 

(i) Pursuant to Section 10.02 of theIndenture, after giving effect to all other contingent and fixed liabilities that are relevant under any applicable Bankruptcy Law or fraudulent conveyance laws, and after giving effect to any collections from, rights to receive contribution from orpayments made by or on behalf of any other Note Guarantor in respect of the obligations of such other Note Guarantor under Article 10 of the Indenture, this new Note Guarantee shall be limited to the maximum amount permissible such that theobligations of such Guaranteeing Subsidiary under this Note Guarantee will not constitute a fraudulent transfer or conveyance. 

 

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(j) This Note Guarantee shall remain in full force and effect and continue to beeffective should any petition be filed by or against the Issuer or any Note Guarantor for liquidation, reorganization, should the Issuer or Note Guarantor become insolvent or make an assignment for the benefit of creditors or should a receiver ortrustee be appointed for all or any significant part of the Issuer’s or any Note Guarantor’s assets, and shall, to the fullest extent permitted by law, continue to be effective or be reinstated, as the case may be, if at any time paymentand performance of the Notes are, pursuant to applicable law, rescinded or reduced in amount, or must otherwise be restored or returned by any obligee on the Notes or Note Guarantees, whether as a “voidable preference,” “fraudulenttransfer” or otherwise, all as though such payment or performance had not been made. In the event that any payment or any part thereof, is rescinded, reduced, restored or returned, the Notes shall, to the fullest extent permitted by law, bereinstated and deemed reduced only by such amount paid and not so rescinded, reduced, restored or returned. 

(k) In case anyprovision of this Note Guarantee shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby. 

(l) This Note Guarantee shall be a general unsecured senior obligation of the Guaranteeing Subsidiary, ranking *pari passu*with allexisting and future Senior Pari Passu Indebtedness of the Guaranteeing Subsidiary, if any. 

(m) Each payment to be made bythe Guaranteeing Subsidiary in respect of this Note Guarantee shall be made without set-off, counterclaim, reduction or diminution of any kind or nature. 

(3) Execution and Delivery. The Guaranteeing Subsidiary agrees that its Note Guarantee shall remain in full force and effect notwithstanding the absence of the endorsement of any notation of such Note Guaranteeon the Notes. 

(4) Merger, Consolidation or Sale of All or Substantially All Assets. 

(a) Except as otherwise provided in Section 5.01(b) of the Indenture, the Guaranteeing Subsidiary may not, and the Issuer will not permit theGuaranteeing Subsidiary to, consolidate, amalgamate or merge with or into or wind up into (whether or not the Guaranteeing Subsidiary is the surviving corporation), or sell, assign, transfer, lease, convey or otherwise dispose of all orsubstantially all of its properties or assets in one or more related transactions to, any Person unless: 

(1) either(a) such Guaranteeing Subsidiary is the surviving Person or the Person formed by or surviving any such consolidation, amalgamation or merger (if other than the Guaranteeing Subsidiary) or to which such sale, assignment, transfer, lease,conveyance or other disposition will have been made is a corporation, partnership or limited liability company organized or existing under the laws of the United States, any state thereof, the District of Columbia, or any territory thereof (theGuaranteeing Subsidiary or such Person, as the case may be, being herein called the “Successor Note Guarantor”) and the Successor Note Guarantor (if other than the Guaranteeing Subsidiary) expressly assumes all the obligations ofthe Guaranteeing Subsidiary under this Indenture and the Guaranteeing Subsidiary’s applicable Note Guarantee pursuant to a supplemental indenture or other documents or instruments in form reasonably satisfactory to the Trustee, or (b) suchsale or disposition or consolidation, amalgamation or merger is not in violation of Section 4.10 of the Indenture; 

 

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(2) the Successor Note Guarantor (if other than the Guaranteeing Subsidiary) shall havedelivered or caused to be delivered to the Trustee an Officer’s Certificate and an Opinion of Counsel, each stating that such consolidation, amalgamation, merger or transfer and such supplemental indenture (if any) comply with the Indenture;and 

(3) immediately after such transaction, no Default or Event of Default exists. 

(b) Except as otherwise provided in the Indenture, the Successor Note Guarantor (if other than the Guaranteeing Subsidiary) will succeed to, and besubstituted for, the Guaranteeing Subsidiary under the Indenture and the Guaranteeing Subsidiary’s applicable Note Guarantee, and the Guaranteeing Subsidiary will automatically be released and discharged from its obligations under the Indentureand the Guaranteeing Subsidiary’s applicable Note Guarantee, but in the case of a lease of all or substantially all of its assets, the Guaranteeing Subsidiary will not be released from its obligations under the Note Guarantee. Notwithstandingthe foregoing, (1) a Guaranteeing Subsidiary may merge, amalgamate or consolidate with an Affiliate incorporated solely for the purpose of reincorporating the Guaranteeing Subsidiary in another state of the United States, the District ofColumbia or any territory of the United States so long as the amount of Indebtedness, Preferred Stock and Disqualified Stock of the Guaranteeing Subsidiary is not increased thereby and (2) a Guaranteeing Subsidiary may merge, amalgamate orconsolidate with another Guaranteeing Subsidiary or the Issuer. 

(c) In addition, notwithstanding the foregoing, the GuaranteeingSubsidiary may consolidate, amalgamate or merge with or into or wind up into, or sell, assign, transfer, lease, convey or otherwise dispose of all or substantially all of its properties or assets (collectively, a “Transfer”) to(x) the Issuer or any Note Guarantor or (y) any Restricted Subsidiary that is not a Note Guarantor; provided that at the time of each such Transfer pursuant to clause (y) the aggregate amount of all such Transfers since theIssue Date shall not exceed the greater of $625.0 million and 5.0% of Total Assets after giving effect to each such Transfer and including all Transfers of the Guaranteeing Subsidiary and the Note Guarantors occurring from and after the Issue Date(excluding Transfers in connection with the Transactions). 

(5) Releases. 

The Note Guarantee of the Guaranteeing Subsidiary shall be automatically and unconditionally released and discharged, and no further action by theGuaranteeing Subsidiary, the Issuer or the Trustee is required for the release of the Guaranteeing Subsidiary’s Guarantee, upon: 

(1)(a) the sale, disposition or other transfer (including through merger or consolidation) of the Capital Stock (including any sale, disposition or other transfer following which the Guaranteeing Subsidiary is no longer a Restricted Subsidiary), of theGuaranteeing Subsidiary if such sale, disposition or other transfer is made in compliance with the applicable provisions of the Indenture; 

(b) the Issuer designating the Guaranteeing Subsidiary to be an Unrestricted Subsidiary in accordance with the provisions set forth under 4.07 of the Indenture and the definition of “Unrestricted Subsidiary”; 

(c) the release or discharge of such Restricted Subsidiary from (x) its guarantee of Indebtedness under the Credit Agreement (including by reason ofthe termination of the Credit Agreement) and/or (y) the guarantee of Indebtedness of the Issuer or any Restricted Subsidiary of the Issuer or such Restricted Subsidiary or the repayment of the Indebtedness or Disqualified Stock (except in eachcase a discharge or release by or as a result of payment under such guarantee) that resulted in the obligation to guarantee the Notes, in the case of each of clauses (x) and (y) if the Guaranteeing Subsidiary would not then otherwise berequired to guarantee the Notes pursuant to this Indenture; provided**, that if such Person has incurred any Indebtedness or issued any Disqualified Stock in reliance on its status as a 

 

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Note Guarantor under Section 4.09 of the Indenture, the Guaranteeing Subsidiary’s obligations under such Indebtedness or Disqualified Stock, as thecase may be, so Incurred are satisfied in full and discharged or are otherwise permitted to be Incurred under Section 4.09 of the Indenture; or 

(d) the Issuer exercising its Legal Defeasance option or Covenant Defeasance option in accordance with Article 8 of the Indenture or the Issuer’s obligations under the Indenture being discharged in accordancewith the terms of the Indenture; and 

(2) in the case of clause (1)(a) above, the release of the Guaranteeing Subsidiary from itsguarantee, if any, of, and all pledges and security, if any, granted in connection with, the Credit Agreement and any other Indebtedness of the Issuer or any Restricted Subsidiary. 

In addition, a Note Guarantee will also be automatically released upon the Guaranteeing Subsidiary ceasing to be a Subsidiary as a result of any foreclosure of any pledge or security interest securing BankIndebtedness or other exercise of remedies in respect thereof. 

(6) No Recourse Against Others. No director, officer, employee,incorporator or holder of any Equity Interests of the Guaranteeing Subsidiary or any direct or indirect parent (other than the Guaranteeing Subsidiary) shall have any liability for any obligations of the Issuer or the Note Guarantors (including theGuaranteeing Subsidiary) under the Notes, the Note Guarantees, the Indenture or this Supplemental Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder by accepting Notes waives andreleases all such liability. The waiver and release are part of the consideration for issuance of the Notes. 

(7) Governing Law.THIS SUPPLEMENTAL INDENTURE WILL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK. 

(8)Counterparts/Originals. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. 

(9) Effect of Headings. The Section headings herein are for convenience only and shall not affect the construction hereof. 

(10) The Trustee. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of thisSupplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Guaranteeing Subsidiary. 

(11) Subrogation. The Guaranteeing Subsidiary shall be subrogated to all rights of Holders of Notes against the Issuer in respect of any amounts paid by the Guaranteeing Subsidiary pursuant to the provisions of Section 2 hereofand Section 10.01 of the Indenture; provided that, if an Event of Default has occurred and is continuing, the Guaranteeing Subsidiary shall not be entitled to enforce or receive any payments arising out of, or based upon, such right ofsubrogation until all amounts then due and payable by the Issuer under the Indenture or the Notes shall have been paid in full. 

(12)Benefits Acknowledged. The Guaranteeing Subsidiary’s Guarantee is subject to the terms and conditions set forth in the Indenture. The Guaranteeing Subsidiary acknowledges that it will receive direct and indirect benefits from thefinancing arrangements contemplated by the Indenture and this Supplemental Indenture and that the guarantee and waivers made by it pursuant to this Note Guarantee are knowingly made in contemplation of such benefits. 

 

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(13) Successors. All agreements of the Guaranteeing Subsidiary in this Supplemental Indentureshall bind its successors, except as otherwise provided in Section 2(k) hereof or elsewhere in this Supplemental Indenture. All agreements of the Trustee in this Supplemental Indenture shall bind its successors. 

[Signatures on following pages] 

 

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IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed, allas of the date first above written. 

 
WORLD REAL ESTATE MARKETING LLCBy: 
/s/ Seth Truwit
Name: Seth TruwitTitle: Senior Vice President & Assistant Secretary
[Supplemental Indenture No. 9 (Toggle Notes)] 

THE BANK OF NEW YORK MELLON (formerly known as THE BANK OF NEW YORK), as TrusteeBy: 
/s/ Franca M. Ferrera
Name: Franca M. FerreraTitle: Assistant Vice President
[Supplemental Indenture No. 9 (Toggle Notes)]