Document:

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                                                                        Ex. 10.8

                  SEVENTH AMENDMENT TO ASSET PURCHASE AGREEMENT

     THIS SEVENTH AMENDMENT TO ASSET PURCHASE AGREEMENT ("Amendment') is made
and entered into as of January __, 2005, by and between SILVERLEAF RESORTS,
INC., a Texas corporation ("Seller"), and ALGONQUIN WATER RESOURCES OF TEXAS,
LLC, a Texas limited liability company; ALGONQUIN WATER RESOURCES OF MISSOURI,
LLC, a Missouri limited liability company; ALGONQUIN WATER RESOURCES OF
ILLINOIS, LLC, an Illinois limited liability company; ALGONQUIN WATER RESOURCES
OF AMERICA, INC., a Delaware corporation; and .ALGONQUIN POWER INCOME FUND, a
Canadian income trust (collectively, the "Purchaser").

                                   WITNESSETH

     WHEREAS, as of August 29: 2004, Seller and Purchaser entered into that
certain Asset Purchase Agreement (the "Agreement") pursuant to which Seller
agreed to sell and Purchaser agreed to purchase certain water and sewer
facilities owned by Seller (the "Real Property"); and

     WHEREAS, pursuant to a First Amendment to Asset Purchase Agreement dated
October 12, 2004, a Second Amendment to Asset Purchase Agreement dated October
20, 2004, a Thired Amendment to Asset Purchase Agreement dated November 10,
2004, a Fourth Amendment to Asset Purchase Agreement dated November 12, 2004, a
Fifth Amendment to Asset Purchase Agreement dated November 16, 2004, and a Sixth
Amendment to Asset Purchase Agreement dated November 30, 2004, Seller and
Purchaser agreed on certain modifications to the terms and conditions of the
Agreement (hereinafter the Agreement as modified is referred to as the
"Agreement"); and

     WHEREAS, Seller and Purchaser desire to further modify the terms and
conditions of the Agreement to extend the deadline for closing of the Agreement;

     NOW, THEREFORE, in consideration of the mutual, promises and covenants
contained herein, and other good and valuable consideration, the receipt,
accuracy and sufficiency of which is hereby acknowledged, Seller and Purchaser
hereby agree as follows:

          l. Notwithstanding anything to the contrary contained in the
Agreement, Seller and Purchaser hereby agree that the closing of the Agreement
shall occur on or before March 15, 2005.

     Except as specifically set forth above, all terms and conditions of the
Agreement shall remain in full force and effect. All capitalized terms not
otherwise defined herein shall have the meaning given to such terms in the
Agreement.

     IN WITNESS WHEREOF, the undersigned have executed this Amendment under
seal, as of the date and year first above written.

                                        SELLER:

                                        SILVERLEAF RESORTS, INC.,
                                        a Texas corporation

                                        By: /S/ ROBERT E. MEAD
                                            ------------------------------------
                                        Name: Robert E. Mead
                                        Its: CEO

                                        PURCHASER:

                                        ALGONQUIN WATER RESOURCES OF TEXAS, LLC,
                                        a Texas limited liability company

                                        By: /S/ IAN ROBERTSON
                                            ------------------------------------
                                        Its: Authorized Signing Officer
<PAGE>
                                        ALGONQUIN WATER RESOURCES OF MISSOURI,
                                        LLC, a Missouri limited liability
                                        company

                                        By: /S/ IAN ROBERTSON
                                            ------------------------------------
                                        Its: Authorized Signing Officer

                                        ALGONQUIN WATER RESOURCES OF ILLINOIS,
                                        LLC, an Illinois limited liability
                                        company

                                        By: /S/ IAN ROBERTSON
                                            ------------------------------------
                                        Its: Authorized Signing Officer

                                        ALGONQUIN WATER RESOURCES OF AMERICA,
                                        INC., a Delaware corporation

                                        By: /S/ IAN ROBERTSON
                                            ------------------------------------
                                        Its: Authorized Signing Officer

                                        ALGONQUIN POWER INCOME FUND,
                                        a Canadian income trust

                                        By its Manager,

                                        ----------------------------------------

                                        ALGONQUIN POWER MANAGEMENT, INC.

                                        By: /S/ IAN ROBERTSON
                                            ------------------------------------
                                        Its: Authorized Signing Officer<PAGE>
                                                                         Ex 10.9

                  EIGHTH AMENDMENT TO ASSET PURCHASE AGREEMENT

     THIS EIGHTH AMENDMENT TO ASSET PURCHASE AGREEMENT ("Amendment") is made and
entered into as of February 22, 2005, by and between SILVERLEAF RESORTS, INC., a
Texas corporation ("Seller"), and ALGONQUIN WATER RESOURCES OF TEXAS, LLC, a
Texas limited liability company; ALGONQUIN WATER RESOURCES OF MISSOURI, LLC, a
Missouri limited liability company; ALGONQUIN WATER RESOURCES OF ILLINOIS, LLC,
an Illinois limited liability company; ALGONQUIN WATER RESOURCES OF AMERICA,
INC., a Delaware corporation; and ALGONQUIN POWER INCOME FUND, a Canadian income
trust (collectively, the "Purchaser").

                                   WITNESSETH

     WHEREAS, as of August 29, 2004, Seller and Purchaser entered into that
certain Asset Purchase Agreement (the "Agreement") pursuant to which Seller
agreed to sell and Purchaser agreed to purchase certain water and sewer
facilities owned by Seller (the "Real Property"); and

     WHEREAS, pursuant to a First Amendment to Asset Purchase Agreement dated
October 12, 2004, a Second Amendment to Asset Purchase Agreement dated October
20, 2004, a Third Amendment to Asset Purchase Agreement dated November 10, 2004,
a Fourth Amendment to Asset Purchase Agreement dated November 12, 2004, a Fifth
Amendment to Asset Purchase Agreement dated November 16, 2004, a Sixth Amendment
to Asset Purchase Agreement dated November 30, 2004, and a Seventh Amendment to
Asset Purchase Agreement dated January, 2005, Seller and Purchaser agreed on
certain modifications to the terms and conditions of the Agreement (hereinafter
the Agreement as modified is referred to as the "Agreement"); and

     WHEREAS, Seller and Purchaser desire to further modify the terms and
conditions of the Agreement to amend Schedule 2.02 of the Agreement to provide
for a further allocation of the Purchase Price set forth thereon;

     NOW, THEREFORE, in consideration of the mutual promises and covenants
contained herein, and other good and valuable consideration, the receipt,
accuracy and sufficiency of which is hereby acknowledged, Seller and Purchaser
hereby agree as follows:

          1. Notwithstanding anything to the contrary contained in the
Agreement, Seller and Purchaser hereby agree that the allocation of the Purchase
Price set forth in Schedule 2.02 to the Agreement is hereby amended as set forth
on the Schedule 2.02 attached to this Amendment and that the remainder of the
Purchase Price not allocated to the Real Property shall cover the remaining
Assets being conveyed by Seller to Purchaser under the Agreement.

     Except as specifically set forth above, all terms and conditions of the
Agreement shall remain in full force and effect. All capitalized terms not
otherwise defined herein shall have the meaning given to such terms in the
Agreement.

     IN WITNESS WHEREOF, the undersigned have executed this Amendment under
seal, as of the date and year first above written.

                                   SELLER:

                                   SILVERLEAF RESORTS, INC., a Texas corporation

                                   By: /S/ ROBERT E. MEAD
                                       -----------------------------------------
                                   Name: Robert E. Mead
                                   Its: CEO

                                        1
<PAGE>
                                   PURCHASER:

                                   ALGONQUIN WATER RESOURCES OF TEXAS, LLC,
                                   a Texas limited liability company

                                   By: /S/ IAN ROBERTSON
                                       -----------------------------------------
                                   Its: Authorized Signing Officer

                                   ALGONQUIN WATER RESOURCES OF MISSOURI, LLC,
                                   a Missouri limited liability company

                                   By: /S/ IAN ROBERTSON
                                       -----------------------------------------
                                   Its: Authorized Signing Officer

                                   ALGONQUIN WATER RESOURCES OF ILLINOIS, LLC,
                                   an Illinois limited liability company

                                   By: /S/ IAN ROBERTSON
                                       -----------------------------------------
                                   Its: Authorized Signing Officer

                                   ALGONQUIN WATER RESOURCES OF AMERICA, INC.,
                                   a Delaware corporation

                                   By: /S/ IAN ROBERTSON
                                       -----------------------------------------
                                   Its: Authorized Signing Officer

                                   ALGONQUIN POWER INCOME FUND,
                                   a Canadian income trust

                                   By its Manager,

                                   ---------------------------------------------

                                   ALGONQUIN POWER MANAGEMENT, INC.

                                   By: /S/ IAN ROBERTSON
                                       -----------------------------------------
                                   Its: Authorized Signing Officer

List of Schedules and Exhibits to Agreement:

Schedule 2.02 Allocation of Purchase Price

                                        2

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