FIRST AMENDMENT TO 800 TOWER DRIVE LEASE

Exhibit 10.25.1

CERTAIN IDENTIFIED INFORMATION HAS BEEN EXCLUDED FROM THE EXHIBIT BECAUSE IT IS BOTH NOT MATERIAL AND WOULD LIKELY CAUSE COMPETITIVE HARM TO THE REGISTRANT IF PUBLICLY DISCLOSED.   [***]  INDICATES THAT INFORMATION HAS BEEN REDACTED.

FIRST AMENDMENT TO ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇ LEASE

THIS FIRST AMENDMENT TO ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇ LEASE (this “First Amendment”) is made this 13th day of July, 2005, by and between 800 TOWER SPE LLC, a Delaware limited liability company, successor in interest to PW/MS OP SUB I, LLC, a Delaware limited liability company (“PW/MS”), whose address is ▇/▇ ▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇▇, ▇.▇.▇., ▇▇▇▇ ▇▇▇▇▇▇ at ▇▇▇▇▇▇ County, ▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇, ▇▇▇▇▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇-▇▇▇▇ (hereinafter referred to as “Landlord”), and QUICKEN LOANS, INC., a Michigan corporation, whose address is ▇▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇ ▇▇▇▇▇, Attention: Corporate Counsel (hereinafter referred to as “Tenant”).

RECITALS:

WHEREAS, PW/MS, as landlord, and Tenant, as tenant, entered into that certain lease (the “Lease”), dated July 6, 2004, covering premises encompassing the Second and Third Floors of the building commonly known as ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇, ▇▇▇▇, ▇▇▇▇▇▇▇▇ (such premises are hereinafter referred to as the “Premises” and such building is hereinafter referred to as the “Building”); and

WHEREAS, the Tenant desires to exercise its option to expand the Premises to include the Fourth Floor of the Building; and

WHEREAS, Landlord and Tenant desire to amend the Lease as hereinafter described.

NOW, THEREFORE, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Landlord and Tenant mutually covenant and agree as follows:

1.             Capitalized Terms. Unless otherwise defined herein, all capitalized terms in this First Amendment shall have the same meanings herein as in the Lease and this First Amendment shall be attached to and form a portion of the Lease.

2.             Conflict. In the event of a conflict between the terms and conditions of this First Amendment and the Lease, the terms and conditions of this First Amendment shall prevail.

3.             Premises. Paragraph 1(d) of the Lease is amended and restated as follows:

“(d) Premises: The entire Second Floor (consisting of 30,955 rentable square feet), the entire Third Floor (consisting of 29,351 rentable square feet)(together the “Initial Premises”) and the entire Fourth Floor (consisting of 31,441 rentable square feet)(the “Expansion Premises”).”

4.             Anticipated Delivery Date. The Anticipated Delivery Date for the Expansion Premises is September 1, 2005, subject to the terms of Paragraph 6(a) hereof.

5.             Rental. Paragraph 1(g) of the Lease is amended to add the following at the end of subparagraph (ii): “, or (C) with respect to the Expansion Premises, for the six (6) month period subsequent to the Delivery Date.”

6.             Term.

(a)           The term of the Lease of the Expansion Premises shall commence on the actual Delivery Date and expire on the Expiration Date set forth in Paragraph 1(f) of the Lease, fully to be completed and ended; provided that the Delivery Date shall be the earlier to occur of the date (i) Landlord’s Architect has certified that Landlord has substantially performed its obligations pursuant to the approved plans and specifications with respect to the Expansion Premises, including the installation of carpeting. To the extent that Tenant may install its fixtures and equipment, Landlord’s work shall be deemed to be substantially completed even though minor details of work or adjustments remain to be done so long as the same shall not materially interfere with Tenant’s use of the Expansion Premises, and (ii) upon which Tenant

shall take possession of all or any part of the Expansion Premises for the conduct of its business. Notwithstanding anything herein contained to the contrary, (i) during the course of Landlord’s construction of the Premises, Tenant and its contractors shall be granted access seven (7) days a week, twenty four (24) hours per day to the Expansion Premises in order to install data and telephone wiring and other improvements, provided Tenant coordinates such access with Landlord and Tenant does not unreasonably interfere with Landlord’s completion of the Expansion Premises and that Tenant or its workers cause no interference to Landlord’s work or other tenants of the Building or Property and (ii) from and after delivery of the Expansion Premises by Landlord to Tenant, Tenant shall have exclusive occupancy of the Expansion Premises in order to complete its fixturing and other improvements to the Expansion Premises and to move in, subject to Landlord access rights to complete punch list items and otherwise complete Landlord’s work.

(b)           In the event of the inability of Landlord to deliver possession of the Expansion Premises on the intended Delivery Date, Landlord shall not be liable for any damage caused thereby, nor shall this Lease be void or voidable, but Tenant unless it is responsible for such delay, shall not be liable for any rent until such time as Landlord can and does deliver possession of the Expansion Premises to Tenant. Subject to Paragraph 7(c) of this First Amendment, no failure to give possession on the intended Delivery Date shall in any way effect the obligations of Tenant hereunder, provided that the Delivery Date (but not the Expiration Date) shall be extended for the period from the Delivery Date set forth in Paragraph 4 hereof until the actual Delivery Date.

7.             Improvements. The provisions of Paragraph 3(a), 8(a)(ii), (iv), (v), (b)(i)(A) and (C), (ii), (iii), (iv), (v), (vi), (vii), (viii), (ix), (x), (xi) and (xii) and 8(c) of the Lease shall be applicable to the renovations to the Expansion Premises, except when modified by the following:

(a)           Based upon the space plan prepared by Tenant and attached as Exhibit “A” to this First Amendment with respect to the Expansion Premises, Landlord’s Architect shall prepare plans and specifications for the Expansion Premises. Landlord shall submit such plans and specifications to Tenant for Tenant’s approval, which approval shall not be unreasonably withheld, on or before July 15, 2005 (subject to delays caused in whole or in part by Tenant or Force Majeure), with respect to the Expansion Premises. If Tenant shall fail to supply such approval or comments in writing within ten (10) business days after receipt thereof, Tenant shall be deemed to have approved such plans and specifications. The cost of the space plan (Exhibit “A” hereto) shall be born by Tenant. The cost of such final plans and specifications shall be paid by Landlord and not charged against the Tenant Allowance.

(b)           (i) Landlord shall complete the Expansion Premises in accordance with the approved plans and specifications up to a cost of [***] per rentable square foot of the Expansion Premises (the “Tenant Allowance”). Tenant shall pay all costs in excess of the Tenant Allowance prior to thirty (30) days after the later to occur of (i) date of billing by Landlord, or (ii) Substantial Completion. If the cost of so completing the Expansion Premises in accordance with the approved plans and specifications is less than the Tenant Allowance, at Tenant’s election, Tenant may utilize all or a portion of such excess for the cost of the improvements to the Expansion Premises made by Tenant and its furniture, furnishings, trade fixtures and equipment to be installed in the Premises and/or applied as a credit against Rent first becoming due under the Lease from and after the Delivery Date.

(ii)           In computing Landlord’s costs of completing the Expansion Premises, Landlord shall receive a five percent (5%) fee for profit, and its actual overhead and administrative costs, not to exceed three percent (3%) of the cost of the work.

(c)           Notwithstanding anything herein contained to the contrary, and so long as the work to complete the Expansion Premises is substantially similar to that performed on the Second and Third Floors of the Building, in the event Landlord fails to substantially complete the Expansion Premises within seventy five (75) days from the later of (i) the date the plans and specifications are approved by both Landlord and Tenant; (ii) the date that the space is available to commence construction (i.e. EDS has vacated the Expansion Premises), (A) Tenant shall have the right to terminate its lease of the Expansion Premises by written notice to Landlord at any time after the expiration of such seventy five (75) day period and prior to such completion,

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[***].

(d)           Thirty (30) days after the execution and delivery of this Amendment, Landlord shall pay the sum of Two and 50/100 Dollars ($2.50) per rentable square foot of the Expansion Premises to Tenant in consideration of Tenant signing this Amendment (hereinafter referred to as the “Signing Payment”); provided, however, that if Tenant shall terminate the lease of the Expansion Premises pursuant to Paragraph 7(c) hereof, upon such termination and as a condition of such termination, Tenant shall refund the Signing Payment in full to Landlord.

(e)           Upon the delivery of the Expansion Premises by Landlord to Tenant, Landlord shall pay to Tenant the sum of Two and 50/100 Dollars ($2.50) per rentable square foot of such Expansion Premises as a moving allowance (hereinafter referred to as the “Moving Allowance”).

(f)            The Landlord’s Development Improvements for the Second and Third Floors of the Building will be completed within sixty (60) days of the date the plans and specifications are approved by both Landlord and Tenant. The Landlord’s Development Improvements for the Expansion Premises shall be completed within sixty (60) days from the later of (i) the date the plans and specifications for such improvements are approved by both Landlord and Tenant or (ii) the date that EDS has vacated such area. Notwithstanding the foregoing, the period for construction of the Landlord’s Development Improvements may be extended for Tenant Delays and pursuant to Paragraph 34 of the Lease. The Landlord’s Development Improvements for the Expansion Premises shall be of the same grade and quality as those for the Second and Third Floors. Tenant shall be responsible for the same pro rata share of the Landlord’s Development Improvements on the Expansion Premises as Tenant paid for the Landlord’s Development Improvements on the Second and Third Floors.

(g)           In addition to the Landlord’s Development Improvements described in the Lease, Landlord shall complete additional work to upgrade the First Floor lobby of the Building. Landlord agrees to spend a minimum of Four Hundred Fifty Thousand Dollars ($450,000.00) to improve the First Floor lobby, such amount being inclusive of applicable Landlord’s Development Improvements identified in the Lease, including, without limitation, those relating to the First Floor lobby and bathrooms set forth in Paragraph 8(a)(1)(B), (C), (D), (E), (F) and (G). The Landlord’s Development Improvements for the First Floor lobby and bathrooms shall be completed on or before September 1, 2005, provided, however, the period for construction of such Landlord’s Development Improvements may be extended for Tenant Delays and pursuant to Paragraph 34 of the Lease.

8.             HVAC Work.

(a)           Landlord shall install a building management system, at Landlord’s expense, to control the HVAC system on the Second, Third and Fourth floors of the Building. The scope of such work is as follows:

All existing built-in temperature controllers for the Carrier Modulines will be removed. The maximum volume regulators shall remain in place for balancing the system. In place of each master control Landlord will install a new DDC master control valve with a software programmable wall-mounted temperature sensor. All of the current zoning shall be maintained. The new DDC controls shall communicate through a network that shall be interfaced to the existing Andover Energy Management System. The room sensors shall be adjustable by the Tenant within a prescribed temperature range which shall be limited through software to approximately 4-6 degrees. Such work shall be completed on or before September 1, 2005. All such work shall be done in accordance with the plans attached hereto as Schedule 1.

(b)           Landlord shall begin the work discussed in Section 8(a) above on or before July 11, 2005. Such work for the Second and Third Floors will be completed within three (3) weeks thereafter (2 weeks for work, 1 week for testing). Tenant shall pay Landlord [***] for it to perform such work after hours. In the event the HVAC work for the Second and Third Floors has not been completed on or before August 15, 2005, Tenant shall receive one day’s free rent for each day after August 15, 2005 until such HVAC work is completed. The work for the Fourth Floor shall be at Landlord’s cost and will be completed simultaneously the Landlord’s

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Development Improvements for the Fourth Floor as discussed in Section 7(f) above. Notwithstanding the foregoing, the period for construction of the HVAC improvements discussed, in this Section 8 may be extended for Tenant Delays and pursuant to Paragraph 34 of the Lease. A more specific schedule for this HVAC work is attached hereto as Schedule 2.

9.             Parking.

(a)           The number of reserved parking spots indicated in Paragraph 36(c)(2) of the Lease is increased from thirty five (35) to fifty (50).

(b)           The Exhibit “H” attached to the Lease shall be deleted and Exhibit “H” attached hereto shall be substituted therefor.

10.          Expansion Option. Paragraph 43 of the Lease is hereby deleted.

11.          Signage. Tenant shall have the exclusive right to install signage on both the Tower Drive and 1-75 sides of the Building pursuant to Paragraph 47 of the Lease. There will no signs identifying other tenants on the Building.

13.          Amendments. Except as modified by this First Amendment to Lease, the Lease and all covenants, agreements, terms and conditions thereof shall remain unchanged and in full force and effect and are hereby in all respects ratified and confirmed.

[SIGNATURES ON FOLLOWING PAGE]

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IN WITNESS WHEREOF, the parties have executed the foregoing as of the day and year below their respective signatures, but effective as of the day and year first above written.

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EXHIBIT “A” to First Amendment to ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇ Lease

Space Plan

[SEE ATTACHED]

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EXHIBIT “H” to First Amendment to ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇ Lease

Reserved Parking

[SEE ATTACHED]

SCHEDULE “1” to First Amendment to ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇ Lease

HVAC Plans

[SEE ATTACHED]

SCHEDULE “2” to First Amendment to ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇ Lease

HVAC Work Schedule

All work to be done between the hours of 11 p.m. and 7 a.m. Monday through Friday.

▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇▇ ▇▇: Start 7/14/05; Complete 7/18/05

▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇ Labeled 2B: Start 7/19/05; Complete 7/21/05

▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇ Labeled 2C: Start 7/22/05; Complete 7/26/05

Northwest Quadrant 2nd Floor Labeled 2D: Start 7/27/05; Complete 7/29/05

2nd Floor Balancing 7/25/05 thru 7/29/05 (during normal business hours)

▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇▇ ▇▇: Start 7/27/05; Complete 7/29/05

Southeast Quadrant 3rd Floor Labeled 3B: Start 8/1/05; Complete ▇/▇/▇▇

▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇ Labeled 3C: Start 8/4/05; Complete ▇/▇/▇▇

▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇ Labeled 3D: Start 8/9/05; Complete 8/11/05

3rd Floor Balancing 8/8/05 thru 8/12/05 (during normal business hours)

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