Document:

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                                                                   EXHIBIT 10.52

                            SUBLEASE AMENDMENT NO. 2

This Amendment No. 2 is to Sublease dated May 1, 1995, as amended by Amendment
No. 1 dated March 11, 1998, between ARTHUR A. RIEDEL, dba THE CELTIC INVESTMENT
CO., as Lessor and WORLD SECURITY SERVICES CORP., as Lessee. Lessor and Lessee
are jointly referred herein as the "parties".

         NOW THEREFORE, the parties agree, good and sufficient consideration
having been given and received:

         1.  This Sublease Amendment shall be in effect ONLY upon the assumption
             of the Sublease by Security Associates International, Inc.

         2.  This Sublease Amendment is effective as of October 1, 1998
             ("Effective Date"), and the new base year anniversary date is
             amended to be October 1, 1998.

         3.  Paragraph 3 of the Sublease, Rental, is amended by the
             substitutions of the following as of the Effective Date:

                 Rental: During the remaining Term of this Sublease, Lessee
                 shall pay Lessor Three Thousand Eight Hundred Twelve and 50/100
                 Dollars ($3,812.50) per month beginning with the Effective
                 Date, exclusive of the provisions in Paragraph 8, and with the
                 same sum due on the first day of each month thereafter. The
                 revised rental is based upon 3,300 square feet of finished
                 office area at the annual rate of $13.50 per square foot per
                 annum, and 150 square feet of storage area at $8.00 per square
                 foot per annum.

                 The monthly rentals due shall be paid at Lessor's offices: 4511
                 N. Channel Avenue; Portland, Oregon; 97217 (or such other
                 address as Lessor may designate in writing).

         4.  Paragraph 6 of the Sublease, as amended, alterations and
             improvements, is amended by the substitution of the following as of
             the effective date:

                Alterations and Improvements to Prepare Subleased Premises for
                Occupancy by the Lessee: As part consideration for Lessor
                granting to Lessee this expansion opportunity, Lessee shall at
                its own cost and expense, make and complete all interior
                improvements and alterations in accordance with plans and
                specifications prepared by Lessee and approved and initialized
                by the parties hereto.

         5.  A new Paragraph 41 is added as follows:

                41. Opportunity to Expand. Provided Lessee is not then in
                default under this Sublease, Lessee shall have the right to
                Sublease Suite 4599 of approximately 5,725 square feet as shown
                on the attached Exhibit "A" until August 1, 1999, and such
                expansion option shall terminate on August 1, 1999 (the
                "Exercise Period"). This right to Sublease will be behind
                Freightliner Corporation unless the right of Freightliner is
                waived, which waiver of right has been requested by Lessor on
                August 25, 1998. Such option shall be exercised by written
                notice on or before the termination date. That is, the "Exercise
                Notice", from Lessee to Lessor must be given within the Exercise
                Period. In the event Lessee shall give Lessor Exercise Notice,
                the monthly rent applicable to the Option Space shall be its
                fair market rental value as of the date of the Exercise Notice.
                Such fair market rental value shall be determined by Lessor in
                good faith, based upon the then fair market value of comparable
                premises in the building and comparable buildings in the general
                vicinity. Lessee shall have the right to review Lessor's
                calculations of fair market value. Lessee shall have the right,
                within ten (10) days after receipt of such notice, to withdraw
                its Exercise Notice, in which case this option right shall be of
                no further force and effect and Lessor shall have the right to
                sublease the Option Space to others. If no such withdrawal
                notice is in its existing condition, any and all costs and
                expenses incurred in the improvement of the first right of
                refusal space shall be borne by Lessee. Any and all plans and
                specifications for proposed construction work in the first right
                of refusal space shall be first approved by Lessor in accordance
                with Article 6 hereof, and any such construction work shall be
                performed by a contractor approved by Lessor.

All other terms, conditions and provisions of the Sublease, as amended, not
expressly amended herein, shall remain in full force and effect.

Dated this 25th day of August, 1998.

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WORLD SECURITY SERVICES CORP.

By:

Title:              President
"LESSEE"

A.A. RIEDEL, dba THE CELTIC INVESTMENT CO.

By:

Title:              Agent for Celtic
"LESSOR"<PAGE>   1
                                                                   EXHIBIT 10.53

                              CONNECTION AGREEMENT
                                  (Segregated)

THIS AGREEMENT is made and entered into by and between PACIFIC NORTHWEST BELL
TELEPHONE COMPANY (herein referred to as PNB), and ALARM MONITORING SERVICE
(herein referred to as Customer).

      1. Scope of Agreement. PNB shall provide 2000 square feet of space on the
basement floor of its Seattle Emerson central office located at 1249 N.E. 145th
St., Seattle, Washington (hereinafter referred to as Premises), subject to
limitations set forth herein, for the installation and housing of Alarm
Monitoring Equipment owned by the Customer, which shall be connected to PNB's
network. A description of equipment, installation and other services are set
forth in Schedules A and B attached hereto and made a part hereof by this
reference.

      2. Term. The term of this agreement shall be for fifteen years, commencing
the lst day of June, 1987, or such later date as may be mutually agreed upon in
writing by the parties.

If the building or improvements are not sufficiently completed to accommodate
occupancy by the commencement date, PNB shall give Customer written notice not
less than fifteen (15) days prior to the commencement date, specifying a later
date upon which the building or improvements will be completed. In this event,
the term of this agreement shall be deemed to commence upon the later date
specified in the notice.

If the commencement date has not occurred within forty-five (45) days from June
1, 1987, unless the date is extended by mutual agreement, this agreement shall
be deemed null and void and all rights and obligations of the parties shall
terminate. Such termination shall be Customer's sole remedy and Customer shall
have no other rights or claims at law or in equity.

Customer shall have the option of extending this lease for an additional ten
year term by providing PNB written notice not less than three (3) months prior
to the termination of the current term. Such option shall be exercised in five
(5) year increments on the 14th and 19th anniversary of the initial term.

      3. Acceptance of Premises. If this agreement is entered into prior to the
completion of any construction or installation in the Premises, the acceptance
of the Premises by Customer shall be deferred until the giving of written notice
by PNB to Customer of the completion of such construction or installation.
Within seven (7) days after PNB gives such notice, Customer shall make such
inspection of the Premises as Customer deems appropriate and, except as
otherwise notified by Customer in writing to PNB, Customer shall be deemed to
have accepted the Premises in its then condition.

      4. Consideration. Effective on the commencement date hereof, Customer
agrees to pay to PNB in advance on the first day of each month, without demand,
deduction or setoff, during the term hereof, computed as follows:

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     a.  For the first five year period, a monthly service charge
         for connection to PNB's network and for use of space in
         PNB's building in the amount of:                             $1,666.00

     b.  For construction of leasehold improvements on the
         premises, amortized over the initial fifteen year term
         of the lease;

Cost of            Annual Compound
Improvements       Interest Rate (10%)     Annual Rate
------------       -------------------     -----------
$75,000 x          0.1314                  $9,855 / 12 =      821.00
                                                              -------------
TOTAL MONTHLY PAYMENT:                                        $2,487.00

The monthly service charge for connection to PNB's network and for use of space
shall be adjusted every five (5) years based on the increase in the CPI-U index,
using 1986 as the base year. The CPI-U index for 1986 is 328.4. Any increase in
the monthly service charge shall not exceed twenty-five (25%) percent.

The monthly charge for any period during the term hereof for which the customer
does not occupy or use the space which is less than one month shall be a
prorated portion of the monthly charge based upon a thirty (30) day month. All
payments shall be made to PNB at the address provided on the statement issued
monthly.

     5. Taxes. All taxes and assessments, except those imposed directly upon
Customer's equipment and personal property located on the Premises, shall be
paid by PNB.

     6. Technical Standards. PNB, or its designated representative, shall have
the right throughout the term of this agreement to:

     a.  approve the size, type and quality of telecommunications equipment,
         including repairs, and electrical connections thereto.

     b.  PNB shall have the right to inspect Customer's equipment at any
         reasonable time during normal business hours, by appointment with
         Customer, for the term of this agreement to ensure compliance with the
         terms and conditions hereof.

     c.  Customer shall install and operate its equipment in compliance with all
         state and local fire and electrical codes. Customer shall operate its
         equipment in compliance with the applicable rules and regulations of
         the Federal Communications Commission, or any other federal, state or
         municipal agency having jurisdiction. Any required license or permit
         shall be posted at all times on the Premises.

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     7.  Special Improvements. Customer shall reimburse PNB for PNB's cost of
making all special improvements requested by Customer including, but not limited
to, partitioning, electrical and telephone outlets and plumbing connections,
which are other than as set forth in the attached schedules as being furnished
by PNB.

Customer will make no alterations to the Premises without first obtaining the
written consent of PNB, and all additions, improvements and fixtures of a
permanent nature made or added either by PNB or Customer shall be and remain the
property of PNB.

     8.  Additional Space. This agreement in no way implies that PNB will build,
furnish or provide Customer with any additional building space beyond what is
agreed to herein.

     9.  Parking. During the term of this agreement, customer shall have the
right to park five (5) vehicles in the parking facilities serving the building.
Customer may, as needed, request a change in the number of vehicles entitled to
parking privileges.

     10. Security. The building of which the Premises are a part including, but
not limited to, the halls, passages, exits, entrances, restrooms, elevators and
stairways, is a secured building and is not for use by the general public. PNB
retains the right to control and prevent access thereto of all persons whose
presence in the judgment of PNB would compromise said security. Customer and its
agents and employees shall comply with any and all rules and regulations
established by PNB for the security of the Premises and the building. PNB shall
issue to Customer and Customer's designated agents or employees, subject to
security rules and regulations, door codes as may be required by Customer for
use of the Premises. PNB will provide 24-hour per day access to customer.

     11. PNB Access. Customer shall permit PNB and its agents to enter into and
upon the Premises, upon reasonable notice, by appointment for the purpose of
inspecting the same or for the purposes of performing janitorial services,
repairing, altering or improving the Premises. When reasonably necessary, PNB
may temporarily close entrances, doors, corridors, elevators or other facilities
without liability to Customer by reason of such closure and without such action
by PNB being construed as a release of Customer from any duty to observe and
perform the provisions of this Agreement.

     12. Electrical Installations. No electric wiring, telegraphic or other
electrical apparatus, including air conditioning equipment, shall be installed,
maintained or operated on said premises except with the approval of and in a
manner satisfactory to PNB.

     13. Transmission Interference. Customer understands and agrees that the
quality of PNB's telecommunications transmissions shall at all times take
precedent, and PNB may require Customer, at Customer's own expense, to take
whatever action necessary to eliminate transmission and/or operational
interference with PNB's equipment which is caused by Customer's equipment,
providing PNB demonstrates that such interference does exist and such
interference is caused by Customer's equipment.

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In the event Customer's equipment is rendered unusable in whole or substantial
part due to transmission and/or operational interference by PNB's equipment,
Customer shall immediately give written notice of such to PNB. PNB shall
undertake a good faith effort to correct or remedy such interference.

If uncorrected after thirty (30) calendar days from date of Customer's notice of
interference, or such other period of time as may be mutually agreed upon,
Customer shall have the right to declare this agreement, and all obligations
hereunder, terminated. Customer shall have no further liability after the date
of such termination; provided, however, that customer shall assume the cost of
disconnecting and removing Customer's equipment from PNB's premises and shall be
liable for all amounts due to date of termination. The parties understand and
agree that PNB shall not be liable in any way for claims for damages or loss for
transmission interference beyond its obligation to undertake a good faith effort
to correct or remedy such interference.

     14. Lawful Conduct. Customer represents and warrants during the term of
this agreement that it has full power and authority from the Federal
Communications Commission, or any other state or federal agency having
jurisdiction, to install, operate and maintain its equipment in the manner
contemplated by Customer. Customer agrees to use the facilities provided
hereunder only for the purposes described herein and to comply with all
applicable state, county and municipal laws and ordinances. Customer shall not
permit any illegal or immoral practice or business on or in the Premises.

     15. Loss of License. In the event that Customer's license from the Federal
Communications Commission or any other state, federal or municipal agency having
jurisdiction, is revoked, cancelled, or not renewed, Customer shall have the
right to terminate this agreement by so notifying PNB in writing and by making
four (4) additional monthly payments within thirty (30) days of such notice of
termination.

     16. Assignment and Subletting. Customer will not assign this agreement or
any interest hereunder, and will not sublet the Premises or any portion thereof,
and will not permit the use or occupancy of said Premises by other than Customer
and its agents and employees without first obtaining the written consent of PNB.

     17. Liens. Customer shall not permit any lien to be imposed upon the
property or facilities of PNB as a result of work done by or on behalf of
Customer and shall indemnify and hold PNB harmless against any and all expenses,
including reasonable attorney's fees, in connection with any such lien.

     18. Uses Prohibited. Customer will not use or permit the use of anything
that may be dangerous to life or limb, or in any manner deface or damage the
Premises or the building of which it is a part, or permit any objectionable
noise or odor to escape or to be emitted from said Premises, or permit anything
to be done upon said Premises in any way tending to create a nuisance or to
disturb any other persons using the building.

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     19. Insurance. Prior to occupation of the space, Customer shall, at its own
expense, throughout the term of this agreement, maintain a comprehensive general
liability policy, including protection against death, personal injury and
property damage, issued by a qualified insurance company, of not less than $1
million combined single limit, in connection with the installation, operation,
repair, maintenance, removal or condition of Customer's equipment, Customer's
entry to or exit from the building. Customer shall provide certificates
evidencing such insurance upon request by PNB.

PNB shall, at its own expense, maintain fire and liability insurance upon the
building.

     20. Waiver of Subrogation. Whether loss or damage is due to the negligence
of either PNB or Customer, their agents or employees, or any other cause, PNB
and Customer do hereby release and relieve the other, their agents or employees,
from responsibility for, and waive their claim of recovery for any loss or
damage covered by their respective insurance policies. Each party shall use
reasonable efforts to cause its insurance carriers to consent to such waiver of
subrogation against the other party.

     21. Excused Performance. Neither party shall be considered to be in default
in the performance of any of its obligations under this agreement resulting from
any delay or failure to perform arising out of causes beyond the party's
control, such causes may include, but are not limited to, acts of God, acts of
the elements, fire, wind, flood, explosion, strikes or acts of civil
authorities.

     22. Regulatory Approval. This agreement may be subject to approval by
regulatory agencies. In the event that such agency disapproves of this
agreement, this agreement shall be deemed null and void and all rights and
obligations of the parties shall terminate. Such termination shall be the
parties' sole remedy and neither party shall have any rights or claims at law or
in equity over and against the other party.

     23. Default. Each of the following events shall constitute a breach or
default of this agreement:

     a.  If Customer shall fail to pay any installment of use charge within ten
         (10) days of receipt of a written notice from PNB that such installment
         was not paid when due.

     b.  If either party refuses or fails to perform its obligations under this
         agreement thirty (30) days written notice shall be given to remedy such
         default, and the defaulting party fails to remedy such default within
         thirty (30) days from date of such notice; or, the defaulting party has
         not made a good faith effort to commence remedy of such default within
         thirty (30) days from date of such notice; or, if performance cannot be
         reasonably commenced within the thirty (30) day period, remedy has not
         been effected on such later date as may be mutually agreed upon by the
         parties.

c.       If Customer shall abandon the space described hereunder.

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     24. Remedies. In the event of default or breach, the parties shall have the
following rights:

     a.  The aggrieved party shall have the right, in addition to all other
         rights and remedies available at law or in equity, to terminate this
         agreement in whole or in part.

     b.  Upon termination or expiration of this agreement, Customer shall remove
         its equipment from PNB facilities and surrender such facilities to PNB
         in as good a condition as when initially provided, normal wear and tear
         excepted. Any damage to PNB facilities caused by removal shall be
         billed to and paid by Customer. Equipment not removed within thirty
         (30) days of termination or expiration of this agreement shall become
         the property of PNB. In the event of Customer's failure to comply with
         this provision, PNB may reenter the space used by Customer, take
         possession of and remove Customer's equipment and recover any and all
         costs incurred by PNB as a result thereof.

In the event either party elects to terminate the Agreement in whole or in part,
termination shall be effected by delivery of a Notice of Termination by
"Certified" mail to the other party specifying the extent to which the Agreement
is terminated, the reasons for such termination and the date upon which such
termination becomes effective.

The remedies provided hereunder shall be cumulative, and the exercise of one
right or remedy shall not impair the right to exercise any other right or
remedy.

     25. Limitation of Liability and Indemnification.

     a.  General. Customer agrees that unless due to PNB's sole negligence, PNB
         shall not be liable for injury or death to any person, damage to
         property, or loss of business arising out of or in any way connected
         with Customer's occupancy of the building, Customer's equipment, or
         Customer's entry to or exit from the building. Customer shall
         indemnify PNB from all loss, liability, damage or other injury,
         including reasonable attorneys' fees, arising as a direct result of
         the sole negligence of Customer, its officers, employees, contractors
         or subcontractors in the performance of this agreement.

     b.  Damage to Building or Equipment. In the event that the building or any
         equipment contained therein is damaged or destroyed to such an extent
         as to render the building unusable in whole or substantial part, PNB
         may terminate this agreement as of the date of such occurrence or
         rebuild or repair the building. PNB shall give Customer written notice
         of its election within seven (7) days of the occurrence of the damage.
         If PNB elects to rebuild or repair, and does so without unnecessary
         delay, Customer shall be bound by this agreement, except that the
         service charge shall be abated for the time necessary to rebuild or
         repair; provided, that if damage is due to the sole negligence of
         Customer, there shall be no such abatement;

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         provided, further, if PNB's election to rebuild or repair and the time
         required to do so would cause an undue hardship on Customer, Customer
         may terminate this agreement by giving notice to PNB in writing,
         setting forth in detail the undue hardships Customer will experience
         and the date upon which such termination will become effective. If PNB
         fails to give any notice of election within seven (7) days of the
         occurrence of the damage, Customer shall have the right to declare
         this agreement, and all obligations hereunder, terminated. Customer
         shall not be entitled to any compensation or damages from PNB for loss
         of the use of the whole or any part of the Premises, Customer's
         property, or any inconvenience occasioned by such damage, repair,
         reconstruction or restoration, unless such is caused by or due to the
         sole negligence of PNB.

PNB SHALL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL
DAMAGES.

     26. Nonwaiver. The failure of either party to enforce strict performance of
any provision of this agreement shall not be construed as a waiver of its right
to assert or rely upon such provision or any other provision of this agreement.

     27. Attorney Fees. If Customer or PNB shall bring any action for relief
against the other, arising out of this Agreement, the prevailing party shall be
entitled to reasonable attorney's fees and costs.

     28. Consent. Whenever consent of either party is required, it shall not be
unreasonably withheld.

     29. Notices. All notices and other communications shall be in writing and
shall be deemed given if delivered or forwarded by certified mail, proper
postage prepaid, to the following:

         PNB:       Ms. Mavis D. Lindeman
                    Director - Property Management
                    Pacific Northwest Bell
                    1503 Bell Plaza
                    Seattle, Washington 98191

         Customer:  Mr. Russell E. VanDevanter
                    Alarm Monitoring Service
                    P.O. Box 25719
                    Seattle, Washington 98125

     30. No Smoking. In accordance with PNB's No Smoking Policy, smoking is not
permitted in the Premises or at any place within the building of which it is a
part.

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<PAGE>   8

     31. Non-Discrimination. The applicable provisions in the attachment,
entitled "Non-Discrimination Compliance Agreement" shall form a part of this
agreement and any amendments thereto.

     32. Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the state in which the Premises is located and the
regulations of the Federal Communications Commission.

     33. Entire Agreement. This Agreement constitutes the entire agreement and
understanding between the parties with respect to the subject matter herein. No
alterations, modifications, or changes to this agreement shall be valid unless
made in writing and agreed to by both parties.

                                      ALARM MONITORING SERVICE

                                      By: /s/ Russell E. VanDevanter
                                          -----------------------------
                                      Title: V.P. Operations
                                             ---------------
                                      Date:  4/12/87
                                            ----------------------

                                      PACIFIC NORTHWEST BELL TELEPHONE COMPANY

                                      By: /s/ J. A. Ellis
                                         -----------------
                                      Title:
                                            ---------------
                                      Date:
                                            ---------------

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