Lease Agreement between Thomas Black Corporation and Aman, Inc. for the lease of office space located on the 1st through 6th, 11th and 12th floors of 20 Custom House Street, Boston, Massachusetts, dated June 11, 1987, and as amended on October 11, 1988, September 14, 1989, September 19, 1990, February 23, 1994, December 20, 1996, June 24, 2002, July 26, 2004 and April 5, 2007, November 7, 2017

1. As of the Effective Date the Tenant shall occupy, and the Premises shall be defined as, approximately 100,017 rentable square feet in the Building (sometimes referred to below as the "Remaining Premises"), configured as set forth on the Lease Data Sheet. The remaining 4,165 rentable square feet currently leased by Tenant (the "Give Back Space"), as more particularly described below, shall be surrendered and properly vacated in strict accordance with the terms of Article 12 of the Lease no later than 4:00 p.m. on December 31, 2017.

2. On or before April 30, 2018, Tenant shall surrender and properly vacate an additional 24,606 rentable square feet currently leased by Tenant (the "Additional Give Back Space"), as more particularly described below in strict accordance with the terms of Article 12 of the Lease.

3. In connection with Tenant's surrender of the Additional Give Back Space, Landlord shall be responsible for the design, materials and construction associated with removing the internal stairs and replacing the floor structures between floors 10, 11 and 12. Landlord shall also be responsible for repainting each bathroom, installing new hardware on bathroom partitions as needed to comply with the Americans With Disabilities Act, and electrostatically repainting the bathroom partitions, within the Remaining Premises. The work set forth in this paragraph 3 shall be the "Landlord's Work" and shall be coordinated with Jones Lang LaSalle and Tenant's Project Manager, Diversified. The Landlord's Work shall be completed on or before May 1, 2018.

4. The Term of the Lease is hereby extended through December 31, 2028.

5. The Lease Data Sheet and Section 1.01(a) are amended to provide that commencing on the Effective Date and continuing throughout the term of the Lease, Base Rent for the Premises shall be as follows:

6. The Office Factor as of the Effective Date shall be 68.85%, which is the ratio, expressed as a fraction of the rentable square footage of the Premises (100,017) to the rentable square footage of the Building (145,271) and shall be adjusted to reflect the surrender of the Additional Give Back Space when and if applicable.

7. From and after the Effective Date, the Occupancy Cost Base for the Premises shall be actual occupancy expenses incurred in calendar year 2018, and the Tax Cost Base shall be fiscal year 2019.

8. Tenant shall have the one-time right to surrender the 3,309 rentable square feet of space within the Premises on the 6th Floor (the "Surrender Space"). Such right shall be exercised, if at all, by nine (9) months advance written notice delivered to Landlord no later than January 1, 2021 (the "Surrender Notice"), in which event the Annual Rent and Office Factor shall be proportionately reduced. Upon receipt of a Surrender Notice, Landlord shall calculate and notify Tenant of the amount of the unamortized Tenant Improvement Allowance and Broker Fees allocated to the Surrender Space (the "Surrender Costs"). In the event Landlord has not received the Surrender Notice prior to January 1, 2021, this provision shall be null and void. If Tenant delivers the Surrender Notice, Tenant shall as a condition to its effectiveness, reimburse Landlord for the Surrender Costs.

9. Except for the Landlord's Work and the Tenant Allowance (defined hereinbelow), Tenant acknowledges that Landlord shall have no obligation whatsoever to make any improvements, alterations or additions to any part of the Premises. As of the date this Ninth Amendment is fully executed and delivered, Landlord shall provide an allowance to Tenant of up to $6,186,975.00 (the "Tenant Allowance") to be expended to refresh and improve the Premises (the "Premises Work"). The Tenant Allowance shall be used for actual and reasonable hard and soft costs associated with the Premises Work as provided in, and in strict accordance with, Exhibit A attached hereto. The Premises Work shall be completed in accordance with the applicable terms of the Lease. Tenant shall submit to Landlord from time to time, but not more than one per month, evidence of expenditures by Tenant for which Tenant is entitled to reimbursement. So long as Tenant is not in default under this Lease, Landlord shall reimburse Tenant for the aforesaid expenses within thirty (30) days after receipt of a requisition therefor, accompanied by (i) a copy of the invoice from Tenant's contractors broken down in reasonable detail and showing the cost of the Premises Work completed, (ii) submission of a lien and release waiver from Tenant's contractor and all subcontractors, and (iii) the certification of Tenant and its architect or contractor that the Premises Work has been installed in a good and workmanlike manner in accordance with all codes, regulations and applicable laws. Tenant shall deliver the final request for payment of the Tenant Allowance to Landlord no later than December 31, 2018 (the "Allowance Cutoff Date"). In the event Tenant does not submit the final request for the Tenant Allowance to Landlord on or before the Allowance Cutoff Date, but subject to extension of this date on a day for day basis due to construction delays resulting from casualty or other events or circumstances beyond Tenant's reasonable control, Landlord shall not be obligated to fund any portion of the Tenant Allowance to Tenant and the Tenant Allowance shall be forfeited by Tenant without any reduction or adjustment to the rent or other charges payable by Tenant to Landlord under this Lease. Tenant shall be responsible for all applicable state sales or use taxes, if any, payable in connection with the Tenant Work and/or 

10. In lieu of any options to extend remaining under the Lease as of the date hereof, Tenant shall have two (2) options to extend the term of this Lease for five (5) years each (each an "Extended Term" hereunder) commencing on the then-expiration of the term of this Lease provided that (i) Tenant is not in default hereunder, either at the time of exercise of this option or at the commencement of the Extended Term; (ii) this Lease has not been terminated or cancelled; (iii) this Lease has not been assigned without permission of Landlord, nor have more than fifty percent (50%) the Premises been sublet. Tenant shall give written notice of its exercise of this option not later than fifteen (15) months prior to the expiration of the Term hereof. Each Extended Term shall be upon the terms, provisions and conditions herein set forth, except that there shall be no further right of extension after the second Extended Term, and the Annual Rent shall be the then Market Rent for space in the Building as of the commencement of the applicable Extended Term as defined in Section 20.19 in the Third Amendment of this Lease. The determination of Market Rent shall take into account current bases for occupancy costs and taxes.

11. Section 20.20 of the Lease ("Right of First Offer") contained in the Fifth Amendment shall be and remain in full force and effect, but only with respect to Floors 2-10 of the Building. A revised Lease Expiration Summary, outlining the current lease expirations for the space on floors 2-10 is attached hereto as Exhibit B.

12. Section 20.17 of the Lease is hereby amended to provide that Tenant's right to lease up to twenty (20) parking spaces in the Building garage shall be reduced. From and after the Effective Date, Tenant shall have the right to lease up to twelve (12) parking spaces, nine (9) of which shall be in the 20 Custom House Street garage and three (3) shall be in the 21 Custom House Street Garage. The parking spaces shall otherwise be upon the terms and conditions set forth in the Lease.

13. Tenant warrants and represents that it has dealt with no broker or agent other than Newmark Grubb Knight Frank and McCall and Almy, whose fees shall be the responsibility of Landlord provided this Ninth Amendment is fully executed and delivered.

14. So long as Tenant is not in default and occupies the Premises for the conduct of an insurance business, Landlord will not enter into a lease for space at 20 Custom House Street with any licensed insurance company or agency selling property casualty insurance.

15. Tenant shall be permitted to replace the existing signs with new signs displaying Tenant's new logo. Landlord and Tenant shall cooperate to locate an appropriate lobby location for Tenant's signage, which shall indicate that Safety Insurance Group, Inc. is a major tenant in the Building. All signs shall be subject to Landlord prior written approval, which shall not be unreasonably delayed.

16. Landlord shall complete a renovation of the lobby at 20 Custom House Street within a reasonable period following approval of all plans and specifications therefor. The schedule, finishes, etc., will be shared with Tenant as soon as the plans are finalized, and budgets are approved.

17. Tenant acknowledges that Landlord intends to rebid the security contract and redefine the scope of work in an effort to provide a more engaged security presence at the Building including enhanced protocols designed to ensure that visitors will be diligently screened upon entry to the Building. Tenant shall have an opportunity to have input on the process, which process shall include:

(a) Bid the entire contract and award it to a provider that delivers a higher level of service.

(b) Install a new online visitor system designed to formalize and coordinate visitor protocol with the security provider.

(c) Upgrade card access readers in the elevators to accept proximity cards to monitor and control access (for employees) and visitor passes for guests.

(d) Design a security desk that ensures easy access to the lobby for the security guards.