PROPERTY CO-TENANCY
                       OWNERSHIP AGREEMENT
               (Champps Restaurant - Columbus, OH)
                                
                                
THIS CO-TENANCY AGREEMENT,

Made  and  entered into as of the 28 day of July,  1997,  by  and
between  Calderwood Investments Limited Partnership, (hereinafter
called  "Calderwood"),  and AEI Real Estate  Fund  XVIII  Limited
Partnership  (hereinafter called "Fund XVIII") (Calderwood,  Fund
XVIII (and any other Owner in Fee where the context so indicates)
being hereinafter sometimes collectively called "Co-Tenants"  and
referred to in the neuter gender).

WITNESSETH:

WHEREAS,  Fund XVIII presently owns an undivided 6.1688% interest
in and to, and AEI Income and Growth Fund XXI Limited Partnership
("Fund  XXI") presently owns an undivided 67.80% interest in  and
to,  and Calderwood presently owns an undivided 11.8514% interest
in  and  to,  and  Adamson presently owns an  undivided  14.1798%
interest  in  and to the land, situated in the City of  Columbus,
County  of  Franklin,  and State of OH, (legally  described  upon
Exhibit A attached hereto and hereby made a part hereof)  and  in
and  to  the  improvements  located thereon  (hereinafter  called
"Premises");

WHEREAS,  The  parties  hereto wish to provide  for  the  orderly
operation   and  management  of  the  Premises  and  Calderwood's
interest by Fund XVIII; the continued leasing of space within the
Premises;  for the distribution of income from and  the  pro-rata
sharing in expenses of the Premises.

NOW THEREFORE, in consideration of the purchase by Calderwood  of
an  undivided interest in and to the Premises, for at  least  One
Dollar  ($1.00) and other good and valuable consideration by  the
parties  hereto  to  one another in hand paid,  the  receipt  and
sufficiency of which are hereby acknowledged, and of  the  mutual
covenants and agreements herein contained, it is hereby agreed by
and between the parties hereto, as follows:

1.    The  operation  and  management of the  Premises  shall  be
delegated  to Fund XVIII, or its designated agent, successors  or
assigns. Provided, however, if Fund XVIII shall sell all  of  its
interest  in  the  Premises, the duties and obligations  of  Fund
XVIII  respecting management of the Premises as set forth herein,
including but not limited to paragraphs 2, 3, and 4 hereof, shall
be exercised by the holder or holders of a majority undivided co-
tenancy interest in the Premises. Except as hereinafter expressly
provided to the contrary, each of the parties hereto agrees to be
bound  by  the  decisions  of  Fund XVIII  with  respect  to  all
administrative,  operational  and  management  matters   of   the
property  comprising the Premises, including but not  limited  to
the  management of the net lease agreement  for the Premises. The
parties  hereto  hereby designate Fund XVIII as  their  sole  and
exclusive  agent  to deal with, and Fund XVIII retains  the  sole
right  to deal with, any property agent or tenant and to monitor,
execute  and  enforce  the terms of leases of  space  within  the
Premises,  including but not limited to any amendments,  consents
to  assignment, sublet, releases or modifications  to  leases  or
guarantees  of  lease  or easements affecting  the  Premises,  on
behalf  of  Calderwood. Only Fund XVIII may  obligate  Calderwood
with respect to any expense for the Premises.

As  further set forth in paragraph 2 hereof, Fund XVIII agrees to
require  any  lessee  of the Premises to name  Calderwood  as  an
insured  or additional insured in all insurance policies provided
for,  or  contemplated by, any lease on the Premises. Fund  XVIII
shall  use  its  best efforts to obtain endorsements  adding  Co-
Tenants   to  said  policies  from  lessee  within  30  days   of
commencement of this



Co-Tenant Initial: /s/ vh /s/ M.C.C
Co-Tenancy Agreement for Champps, Columbus, OH






agreement.  In  any  event,  Fund  XVIII  shall  distribute   any
insurance proceeds it may receive, to the extent consistent  with
any  lease  on  the Premises, to the Co-Tenants in proportion  to
their respective ownership of the Premises.

2.    Income and expenses shall be allocated among the Co-Tenants
in  proportion to their respective share(s) of ownership.  Shares
of  net income shall be pro-rated for any partial calendar  years
included within the term of this Agreement. Fund XVIII may offset
against,  pay  to  itself  and deduct from  any  payment  due  to
Calderwood under this Agreement, and may pay to itself the amount
of  Calderwood's share of any legitimate expenses of the Premises
which  are  not paid by Calderwood to Fund XVIII or its  assigns,
within  ten  (10) days after demand by Fund XVIII. In  the  event
there  is  insufficient operating income  from  which  to  deduct
Calderwood's unpaid share of operating expenses, Fund  XVIII  may
pursue any and all legal remedies for collection.

Operating  Expenses  shall include all normal operating  expense,
including  but not limited to: maintenance, utilities,  supplies,
labor, management, advertising and promotional expenses, salaries
and wages of rental and management personnel, leasing commissions
to  third  parties, a monthly accrual to pay insurance  premiums,
real  estate taxes, installments of special assessments  and  for
structural repairs and replacements, management fees, legal  fees
and accounting fees, but excluding all operating expenses paid by
Tenant under terms of any lease agreement of the Premises.

Calderwood has no requirement to, but has, nonetheless elected to
retain,  and  agrees to annually reimburse,  Fund  XVIII  in  the
amount  of $1,170 for the expenses, direct and indirect, incurred
by  Fund  XVIII in providing Calderwood with quarterly accounting
and  distributions of Calderwood's share of net  income  and  for
tracking, reporting and assessing the calculation of Calderwood's
share  of  operating  expenses incurred from the  Premises.  This
invoice   amount  shall  be  pro-rated  for  partial  years   and
Calderwood  authorizes  Fund XVIII to  deduct  such  amount  from
Calderwood's  share of revenue from the Premises. Calderwood  may
terminate  this agreement in this paragraph respecting accounting
and distributions at any time and attempt to collect its share of
rental  income directly from the tenant; however, enforcement  of
all  other provisions of the lease remains the sole right of Fund
XVIII pursuant to Section 1 hereof.

3.    Full, accurate and complete books of account shall be  kept
in  accordance  with generally accepted accounting principles  at
Fund  XVIII's  principal office, and each  Co-Tenant  shall  have
access  to  such books and may inspect and copy any part  thereof
during  normal business hours. Within ninety (90) days after  the
end  of  each  calendar year during the term hereof,  Fund  XVIII
shall  prepare an accurate income statement for the ownership  of
the  Premises for said calendar year and shall furnish copies  of
the  same  to all Co-Tenants. Quarterly, as its share, Calderwood
shall be entitled to receive 11.8514% of all items of income  and
expense  generated  by  the  Premises.   Upon  receipt  of   said
accounting,  if the payments received by each Co-Tenant  pursuant
to  this  Paragraph 3 do not equal, in the aggregate, the amounts
which  each are entitled to receive proportional to its share  of
ownership  with  respect  to  said  calendar  year  pursuant   to
Paragraph  2 hereof, an appropriate adjustment shall be  made  so
that each Co-Tenant receives the amount to which it is entitled.

4.    If  Net Income from the Premises is less than $0.00  (i.e.,
the  Premises  operates  at a loss), or if capital  improvements,
repairs, and/or replacements, for which adequate reserves do  not
exist,  need  to  be made to the Premises, the  Co-Tenants,  upon
receipt  of  a  written request therefor from Fund XVIII,  shall,
within  fifteen (15) business days after receipt of notice,  make
payment to Fund XVIII sufficient to pay said net operating losses
and  to provide necessary operating capital for the premises  and
to   pay   for   said   capital  improvements,   repairs   and/or
replacements, all in proportion to their undivided  interests  in
and to the Premises.




Co-Tenant Initial: /s/ vh /s/ M.C.C
Co-Tenancy Agreement for Champps, Columbus, OH




5.    Co-Tenants  may, at any time, sell, finance,  or  otherwise
create  a lien upon their interest in the Premises but only  upon
their  interest  and not upon any part of the interest  held,  or
owned, by any other Co-Tenant.  All Co-Tenants reserve the  right
to escrow proceeds from a sale of their interests in the Premises
to obtain tax deferral by the purchase of replacement property.

6.    If any Co-Tenant shall be in default with respect to any of
its  obligations hereunder, and if said default is not  corrected
within  thirty  (30)  days after receipt by said  defaulting  Co-
Tenant  of written notice of said default, or within a reasonable
period  if  said default does not consist solely of a failure  to
pay money, the remaining Co-Tenant(s) may resort to any available
remedy to cure said default at law, in equity, or by statute.

7.    This  property management agreement shall continue in  full
force  and effect and shall bind and inure to the benefit of  the
Co-Tenant  and their respective heirs, executors, administrators,
personal representatives, successors and permitted assigns  until
August  29,  2031  or  upon the sale of the  entire  Premises  in
accordance with the terms hereof and proper disbursement  of  the
proceeds   thereof,   whichever  shall   first   occur.    Unless
specifically   identified  as  a  personal  contract   right   or
obligation herein, this agreement shall run with any interest  in
the  Premises and with the title thereto. Once any person,  party
or  entity has ceased to have an interest in fee in the Premises,
it  shall  not be bound by, subject to or benefit from the  terms
hereof;   but  its  heirs,  executors,  administrators,  personal
representatives, successors or assigns, as the case may be, shall
be substituted for it hereunder.

8.    Any notice or election required or permitted to be given or
served by any party hereto to, or upon any other, shall be deemed
given  or  served  in  accordance with  the  provisions  of  this
Agreement, if said notice or elections addressed as follows;

If to Fund XVIII:

AEI Real Estate Fund XVIII Limited Partnership
1300 Minnesota World Trade Center
30 E. Seventh Street
St. Paul, Minnesota  55101

If to Calderwood:

Calderwood Investments Limited Partnership
Vickie L. Hegebush, general partner
Mary C. Calderwood, general partner
ATTN:  VICKI
228 E. Fleet Drive
Tempe, AZ  85283

If to Adamson:

The Thomas W. Adamson Family Limited Partnership
Gerald Adamson
206 Palm Avenue
Bullhead City, AZ  86430



Co-Tenant Initial: /s/ vh /s/ M.C.C
Co-Tenancy Agreement for Champps, Columbus, OH




Wayne Adamson
1400 W. Walnut
Marion, IL  62959


Each mailed notice or election shall be deemed to have been given
to,  or served upon, the party to which addressed on the date the
same  is  deposited in the United States certified  mail,  return
receipt  requested,  postage prepaid, or given  to  a  nationally
recognized  courier  service guaranteeing overnight  delivery  as
properly addressed in the manner above provided. Any party hereto
may  change  its address for the service of notice  hereunder  by
delivering  written notice of said change to  the  other  parties
hereunder, in the manner above specified, at least ten (10)  days
prior to the effective date of said change.

9.    This  Agreement shall not create any partnership  or  joint
venture  among or between the Co-Tenants or any of them, and  the
only  relationship  among  and between the  Co-Tenants  hereunder
shall  be  that  of owners of the premises as tenants  in  common
subject to the terms hereof.

10.    The  unenforceability or invalidity of  any  provision  or
provisions  of  this Agreement as to any person or  circumstances
shall  not render that provision, nor any other provision hereof,
unenforceable or invalid as to any other person or circumstances,
and  all  provisions hereof, in all other respects, shall  remain
valid and enforceable.

11.   In  the  event  any litigation arises between  the  parties
hereto  relating  to  this Agreement, or any  of  the  provisions
hereof, the party prevailing in such action shall be entitled  to
receive  from the losing party, in addition to all other  relief,
remedies  and  damages  to  which it is otherwise  entitled,  all
reasonable  costs  and expenses, including reasonable  attorneys'
fees,  incurred by the prevailing party in connection  with  said
litigation.


Co-Tenant Initial: /s/ vh /s/ M.C.C
Co-Tenancy Agreement for Champps, Columbus, OH



       The remainder of this page intentionally left blank



IN WITNESS WHEREOF, The parties hereto have caused this Agreement
to be executed and delivered, as of the day and year first above
                            written.

Calderwood     Calderwood Investments Limited Partnership
  
          By: /s/ Vicki L Hegebush gp.
                  Vickie L. Hegebush, general partner
 
          WITNESS:
           /s/ Marilyn Schmickley                [notary seal]
               Marilyn Schmickley            /s/ J. Moss
               (Print Name)
     
          WITNESS:
     
     
          (Print Name)

STATE OF Arizona)
                              ) ss
COUNTY OF Maricopa)

I,  a Notary Public in and for the state and county of aforesaid,
hereby  certify there appeared before me this 25th day  of  July,
1997,  Vickie  L.  Hegebush, general partner,  who  executed  the
foregoing instrument in said capacity and on behalf of  the  said
limited partnership.

          By:/s/ Mary C Calderwood g.p
                 Mary C. Calderwood, general partner

          WITNESS:
          /s/ Marilyn Schmickley
              Marilyn Schmickley
              (Print Name)
     
          WITNESS:
     
     
          (Print Name)

STATE OF Arizona)
                              ) ss
COUNTY OF Maricopa)

I,  a Notary Public in and for the state and county of aforesaid,
hereby  certify there appeared before me this 25th day  of  July,
1997,  Mary  C.  Calderwood, general partner,  who  executed  the
foregoing instrument in said capacity and on behalf of  the  said
limited partnership.



                                             [notary seal[
                                             /s/ J. Moss



Co-Tenant Initial: /s/ vh /s/ M.C.C
Co-Tenancy Agreement for Champps, Columbus, OH




Fund XVIII AEI Real Estate Fund XVIII Limited Partnership

            By: AEI Fund Management XVIII, Inc., its corporate
                general partner

            By:/s/ Robert P Johnson
                   Robert P. Johnson, President


            WITNESS:
     
           /s/ Debra L Achman
     
               Debra L Achman
               (Print Name)
     
            WITNESS:
     
           /s/ Jeni K Henrickson
     
               Jeni K Henrickson
               (Print Name)


State of Minnesota )
                                   ) ss.
County of Ramsey  )

I,  a Notary Public in and for the state and county of aforesaid,
hereby  certify there appeared before me this 28th day of  Jully,
1997,  Robert P. Johnson, President of AEI Fund Management XVIII,
Inc.,  corporate general partner of AEI Real Estate  Fund  XVIIII
Limited Partnership who executed the foregoing instrument in said
capacity  and  on  behalf of the corporation in its  capacity  as
corporate general partner, on behalf of said limited partnership.

                              /s/ Laura M Steidl
                                  Notary Public





Co-Tenant Initial: /s/ vh /s/ M.C.C
Co-Tenancy Agreement for Champps, Columbus, OH






                            LEGAL DESCRIPTION
     
     Situated in the State of Ohio, County of Franklin,  City  of
     Columbus, being located in Section 2, Township 2, Range  18,
     United  States Military Lands, and being part of a  43.  161
     acre tract of land (Parcel No. 610-146452) conveyed to Forty-
     One Corporation (the Grantor), by deed of record in Official
     Record  15500  A-G, all references being to records  in  the
     Recorder's  Office,  Franklin County Ohio,  and  being  more
     particularly described as follows:
     
     Beginning  for reference at the intersection of  North  High
     Street (US 23) and East Campus View Boulevard (80.00 feet in
     width) as shown in Plat Book 60, Page 26:
     
     thence  S  86 49' 53" E, along the centerline of  said  East
     Campus View Boulevard, a distance of 900.00 feet to a  point
     of curvature,
     
     thence  along  the  centerline  of  said  East  Campus  View
     Boulevard,  with  a  curve tot he left having  a  radius  of
     1350.00 feet, a chord bearing of N 89 27' 50" E, and a chord
     distance  of 174.45 feet to the intersection with centerline
     of High Cross Boulevard (80.00 feet in width);
     
     thence S 1 53'32" E, along the centerline of said High cross
     Boulevard a distance of 74.72 feet to a point;
     
     thence  N 88 06'28" E, a distance of 40.00 feet to  an  iron
     pin set in the easterly right of way line of said High Cross
     Boulevard,  said point being the True Point of Beginning  of
     herein described tract;
     
     thence  along  the easterly right of way line of  said  High
     Cross  Boulevard, with a curve to the right, having a radius
     of 40.00 feet, a chord bearing of N 40 23'34" E, and a chord
     distance  of 53.83 feet to an iron pin set in the  southerly
     right of way line of said East Campus View Boulevard;
     
     thence  along the southerly right of way line of  said  East
     Campus  View  Boulevard  and the northerly  line  of  herein
     described tract, with a curve to the left, having  a  radius
     of  1390.00 feet, a chord bearing of N 82 25'24"  E,  and  a
     chord distance of 12.36 feet to an iron  pin set;
     
     thence N 82 10' 07" E, along the southerly right of way line
     of said East Campus View boulevard and the northerly line of
     herein described tract, a distance of 209.28 feet to an iron
     pin  set  at  the  northeasterly corner of herein  described
     tract;
     
     thence  s  7  49' 49" E, along the easterly line  of  herein
     described  tract, a distance of 312.60 feet to an  iron  pin
     set at the southeasterly corner of herein described tract;
     
     thence  S  82 10'11" W, along the southerly line  of  herein
     described  tract, a distance of 318.01 feet to an  iron  pin
     set  in  the  easterly right of way line of said High  Cross
     Boulevard  at  the southwesterly corner of herein  described
     tract;
     
     thence  along  the easterly right of way line of  said  High
     Cross  Boulevard  and the westerly line of herein  described
     tract, with a curve to the right, having a radius of 2960.00
     feet, a chord bearing of N 9 21' 59" E, and a chord distance
     of 10/.64 feet to an iron pin set;
     
     thence N 9 28'10" E, along the easterly right of way line of
     said  High  Cross Boulevard and the westerly line of  herein
     described tract a distance of 89.24 feet to an iron pin set;
     
     thence  along  the easterly right of way line of  said  High
     Cross  Boulevard  and the westerly line of herein  described
     tract,  with a curve to the left, having a radius of  390.00
     feet, a chord bearing at N 3 47' 19" E, and a chord distance
     of 77.21 feet to an iron pin set;
     
     thence N 53' 32" W, along the easterly right of way line  of
     said  High  Cross Boulevard and the westerly line of  herein
     described tract a distance of 106/36 feet to the True  Point
     of  Beginning  containing 2,005 acres,  more  or  less,  and
     subject to any rights of way, easements, and restrictions of
     record.
     
     The  Basis  of Bearing in this description is the centerline
     of  East  Campus View Boulevard, being S 86 49'  53"  E,  as
     shown  in Plat Book 61, Page 79, Recorder's Office, Franklin
     County, Ohio.