Acknowledgment Regarding Purchasers’ Purchase of Securities. The Company acknowledges and agrees that each of the Purchasers is acting solely in the capacity of an arm’s length purchaser with respect to the Transaction Documents and the transactions contemplated thereby. The Company further acknowledges that no Purchaser is acting as a financial advisor or fiduciary of the Company (or in any similar capacity) with respect to the Transaction Documents and the transactions contemplated thereby and any advice given by any Purchaser or any of their respective representatives or agents in connection with the Transaction Documents and the transactions contemplated thereby is merely incidental to the Purchasers’ purchase of the Securities. The Company further represents to each Purchaser that the Company’s decision to enter into this Agreement and the other Transaction Documents has been based solely on the independent evaluation of the transactions contemplated hereby by the Company and its representatives.

Default of One or More of the Several Initial Purchasers. If any one or more of the several Initial Purchasers shall fail or refuse to purchase Securities that it or they have agreed to purchase hereunder on the Closing Date, and the aggregate amount of Securities which such defaulting Initial Purchaser or Initial Purchasers agreed but failed or refused to purchase does not exceed 10% of the aggregate amount of the Securities to be purchased on such date, the other Initial Purchasers shall be obligated, severally, in the proportions that the amount of Securities set forth opposite their respective names on [Schedule I] bears to the aggregate amount of Securities set forth opposite the names of all such non-defaulting Initial Purchasers, or in such other proportions as may be specified by the Initial Purchasers with the consent of the non-defaulting Initial Purchasers, to purchase the Securities which such defaulting Initial Purchaser or Initial Purchasers agreed but failed or refused to purchase on the Closing Date. If any one or more of the Initial Purchasers shall fail or refuse to purchase Securities and the aggregate amount of Securities with respect to which such default occurs exceeds 10% of the aggregate amount of Securities to be purchased on the Closing Date, and arrangements satisfactory to the Initial Purchasers and the Company for the purchase of such Securities are not made within 48 hours after such default, this Agreement shall terminate without liability of any party to any other party except that the provisions of Sections 5(f), 8 and 9 hereof shall at all times be effective and shall survive such termination. In any such case either the Initial Purchasers or the Company shall have the right to postpone the Closing Date, but in no event for longer than seven days in order that the required changes, if any, to the Final Offering Memorandum or any other documents or arrangements may be effected.

Sale and Purchase of Purchase Securities. Subject to the terms and conditions hereof, the Company agrees to issue and sell to the Purchaser, and the Purchaser agrees to purchase and acquire from the Company, the aggregate number of Series C Preferred Units and Warrants set forth on [Schedule 1] hereto, in such amounts and at such applicable Closing Dates as further described herein. The Warrants to be issued and sold hereunder will be exercisable into Partnership Units, in the manner and at the prices set forth in the Warrant Agreement. The Partnership Units issuable upon exercise of the Warrants are referred to collectively herein as the “Warrant Units”.

Purchase of the Securities. On the Closing Date (as defined below), the Company shall issue and sell to the Buyer and the Buyer agrees to purchase from the Company the Securities as is set forth immediately below the Buyer’s name on the signature pages hereto.

The Company and the Purchasers entered into a certain Securities Purchase Agreement dated as of May 28, 2014 (the “Agreement”). The Company and the Purchasers desire to extend the term of the Agreement.

Company Policies Regarding Securities Transactions. By accepting this award of RSUs, you agree to comply with all Company policies regarding trading in securities or derivative securities (including, without limitation, the Company’s policies prohibiting trading on material inside information regarding the Company or any business with which the Company does business, the Company’s policies prohibiting engaging in financial transactions that would allow you to benefit from a devaluation of the Company’s securities, and any additional policy that the Company may adopt prohibiting you from hedging your economic exposure to the Company’s securities), as such policies are in effect from time to time and for as long as such policies are applicable to you.

Acknowledgment. Employee acknowledges that if Employee materially breaches any of the provisions of Paragraph 5 of this Agreement, in addition to any other of the Company's rights and remedies, the Company shall immediately cease all payments or benefits described in Paragraph 4 above.

Acknowledgment. You warrant that you are fully competent to enter into this Agreement. You acknowledge that you have been afforded a reasonable period of time and opportunity to review this Agreement with an attorney of your choice. You represent that you have read this Agreement, including the Release, that you fully understand the terms, and that you choose to enter into this Agreement freely, voluntarily, and without coercion.

Acknowledgment. Executive acknowledges that he has had the opportunity to discuss this matter with and obtain advice from Executive’s private attorney, has had sufficient time to, and has carefully read and fully understands all the provisions of this Agreement, and is knowingly and voluntarily entering into this Agreement.

Acknowledgment. Employee acknowledges that Employee has carefully read this Agreement, has had an opportunity to consult counsel regarding this Agreement and hereby represents and warrants to the Company that Employee’s entering into this Agreement, and the obligations and duties undertaken by Employee hereunder, will not conflict with, constitute a breach of or otherwise violate the terms of any other agreement to which Employee is a party and that Employee is not required to obtain the consent of any person, firm, corporation or other entity in order to enter into and perform Employee’s obligations under this Agreement.