General Growth Properties (GGP+A) SC 13D/A GENERAL GROWTH PROPERTIES / BROOKFIELD ASSET MANAGEMENT ownership change

Exhibit 18

Joint Filing Agreement

THIS JOINT FILING AGREEMENT is entered into as of August 24, 2012, by and among the parties hereto.  The undersigned hereby agree that the Statement on Schedule 13D with respect to thecommon stock, par value $0.01 per share (the “Common Stock”), of General Growth Properties, Inc., a Delaware corporation, and any amendment thereafter signed by each of the undersigned shall be (unless otherwise determined by the undersigned) filed on behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.

Dated: August 24, 2012	BROOKFIELD ASSET MANAGEMENT INC.
	By:	/s/ Aleks Novakovic
		Name: Aleks Novakovic
		Title: Managing Partner
	By:	/s/ Joseph Freedman
		Name: Joseph Freedman
		Title: Senior Managing Partner

Dated: August 24, 2012	PARTNERS LIMITED
	By:	/s/ Loretta Corso
		Name: Loretta Corso
		Title: Secretary

Dated: August 24, 2012	Brookfield Asset Management Private Institutional Capital Adviser (Canada) L.P.
	By: Brookfield Private Funds Holdings Inc., its general partner
	By:	/s/ Karen Ayre
		Name: Karen Ayre
		Title: Vice President

Dated: August 24, 2012	BROOKFIELD PRIVATE FUNDS HOLDINGS INC.
	By:	/s/ Karen Ayre
		Name: Karen Ayre
		Title: Vice President
	By:	/s/ David Stalter
		Name: David Stalter
		Title: Vice President

Dated: August 24, 2012	BROOKFIELD HOLDINGS CANADA INC.
	By:	/s/ Aleks Novakovic
		Name: Aleks Novakovic
		Title: Vice President
	By:	/s/ Joseph Freedman
		Name: Joseph Freedman
		Title: Vice President

Dated: August 24, 2012	brookfield retail split lp
	By:Brookfield REP GP Inc., its general partner
	By:	/s/ Karen Ayre
		Name: Karen Ayre
		Title: Vice President

Dated: August 24, 2012	brookfield US Holdings Inc.
	By:	/s/ Aleks Novakovic
		Name: Aleks Novakovic
		Title: Vice President

Dated: August 24, 2012	brookfield US Corporation
	By:	/s/ Karen Ayre
		Name: Karen Ayre
		Title: Vice President

Dated: August 24, 2012	BROOKFIELD REP GP INC.
	By: Brookfield US Corporation, its managing member
	By:	/s/ Karen Ayre
		Name: Karen Ayre
		Title: Vice President

Dated: August 24, 2012	BROOKFIELD RETAIL HOLDINGS LLC
	By: Brookfield Asset Management Private Institutional Capital Adviser (Canada) L.P., its managing member
	By: Brookfield Private Funds Holdings Inc., its general partner
	By:	/s/ Karen Ayre
		Name: Karen Ayre
		Title: Vice President
	By:	/s/ David Stalter
		Name: David Stalter
		Title: Vice President

Dated: August 24, 2012	BROOKFIELD RETAIL HOLDINGS II LLC
	By: Brookfield Asset Management Private Institutional Capital Adviser (Canada) L.P., its managing member
	By: Brookfield Private Funds Holdings Inc., its general partner
	By:	/s/ Karen Ayre
		Name: Karen Ayre
		Title: Vice President
	By:	/s/ David Stalter
		Name: David Stalter
		Title: Vice President

Dated: August 24, 2012	BROOKFIELD RETAIL HOLDINGS III LLC
	By: Brookfield Asset Management Private Institutional Capital Adviser (Canada) L.P., its managing member
	By: Brookfield Private Funds Holdings Inc., its general partner
	By:	/s/ Karen Ayre
		Name: Karen Ayre
		Title: Vice President
	By:	/s/ David Stalter
		Name: David Stalter
		Title: Vice President

Dated: August 24, 2012	BROOKFIELD RETAIL HOLDINGS IV-A LLC
	By: Brookfield Asset Management Private Institutional Capital Adviser (Canada) L.P., its managing member
	By: Brookfield Private Funds Holdings Inc., its general partner
	By:	/s/ Karen Ayre
		Name: Karen Ayre
		Title: Vice President
	By:	/s/ David Stalter
		Name: David Stalter
		Title: Vice President

Dated: August 24, 2012	BROOKFIELD RETAIL HOLDINGS IV-B LLC
	By: Brookfield Asset Management Private Institutional Capital Adviser (Canada) L.P., its managing member
	By: Brookfield Private Funds Holdings Inc., its general partner
	By:	/s/ Karen Ayre
		Name: Karen Ayre
		Title: Vice President
	By:	/s/ David Stalter
		Name: David Stalter
		Title: Vice President

Dated: August 24, 2012	BROOKFIELD RETAIL HOLDINGS IV-C LLC
	By: Brookfield Asset Management Private Institutional Capital Adviser (Canada) L.P., its managing member
	By: Brookfield Private Funds Holdings Inc., its general partner
	By:	/s/ Karen Ayre
		Name: Karen Ayre
		Title: Vice President
	By:	/s/  David Stalter
		Name: David Stalter
		Title: Vice President

Dated: August 24, 2012	BROOKFIELD RETAIL HOLDINGS IV-D LLC
	By: Brookfield Asset Management Private Institutional Capital Adviser (Canada) L.P., its managing member
	By: Brookfield Private Funds Holdings Inc., its general partner
	By:	/s/  Karen Ayre
		Name: Karen Ayre
		Title: Vice President
	By:	/s/ David Stalter
		Name: David Stalter
		Title: Vice President

Dated: August 24, 2012	BROOKFIELD RETAIL HOLDINGS V LP
	By: Brookfield Asset Management Private Institutional Capital Adviser (Canada) L.P., its general partner
	By: Brookfield Private Funds Holdings Inc., its general partner
	By:	/s/ Karen Ayre
		Name: Karen Ayre
		Title: Vice President
	By:	/s/ David Stalter
		Name: David Stalter
		Title: Vice President

Dated: August 24, 2012	BROOKFIELD RETAIL SPLIT II LLC
	By: Brookfield REP GP Inc., its managing member
	By:	/s/ Karen Ayre
		Name: Karen Ayre
		Title: Vice President

Dated: August 24, 2012	BROOKFIELD RETAIL HOLDINGS VI LLC
	By: Brookfield Asset Management Private Institutional Capital Adviser (Canada) L.P., its general partner
	By: Brookfield Private Funds Holdings Inc., its general partner
	By:	/s/ Karen Ayre
		Name: Karen Ayre
		Title: Vice President
	By:	/s/ David Stalter
		Name: David Stalter
		Title: Vice President