EXHIBIT W

JOINT FILING AGREEMENT

This will confirm the agreement by and among the undersigned that the Schedule 13D filed with the Securities and Exchange Commission on or about the date hereof with respect to the beneficial ownership by the undersigned of the shares of common stock, par value $0.01 per share of Mr. Cooper Group Inc. (f/k/a WMIH Corp.), is being filed, and all amendments thereto will be filed, on behalf of each of the persons and entities named below that is named as a reporting person in such filing in accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument.

Dated: December 31, 2019

	KKR WAND HOLDINGS CORPORATION
	By: /s/ Terence P. Gallagher
	Name: Terence P. Gallagher
	Title: Attorney-in-fact for Christopher J. Harrington, Director
	KKR WAND INVESTORS CORPORATION
	By: /s/ Terence P. Gallagher
	Name: Terence P. Gallagher
	Title: Attorney-in-fact for Christopher J. Harrington, Director
	KKR WAND INVESTORS L.P.
	By: KKR Wand GP LLC, its general partner
	By: /s/ Terence P. Gallagher
	Name: Terence P. Gallagher
	Title: Attorney-in-fact for Christopher J. Harrington, President
	KKR WAND GP LLC
	By: /s/ Terence P. Gallagher
	Name: Terence P. Gallagher
	Title: Attorney-in-fact for Christopher J. Harrington, President
	KKR FUND HOLDINGS L.P.
By:	KKR Group Holdings Corp., a general partner
By:	/s/ Terence P. Gallagher
	Name: Terence P. Gallagher
	Title: Attorney-in-fact for William J. Janetschek, Chief Financial Officer

	KKR FUND HOLDINGS GP LIMITED
By:	/s/ Terence P. Gallagher
	Name: Terence P. Gallagher
	Title: Attorney-in-fact for William J. Janetschek, Director
	KKR GROUP HOLDINGS CORP.
By:	/s/ Terence P. Gallagher
	Name: Terence P. Gallagher
	Title: Attorney-in-fact for William J. Janetschek, Chief Financial Officer

	KKR & CO. INC.
By:	/s/ Terence P. Gallagher
	Name: Terence P. Gallagher
	Title: Attorney-in-fact for William J. Janetschek, Chief Financial Officer
	KKR MANAGEMENT LLC
By:	/s/ Terence P. Gallagher
	Name: Terence P. Gallagher
	Title: Attorney-in-fact for William J. Janetschek, Chief Financial Officer

	HENRY R. KRAVIS
By:	/s/ Terence P. Gallagher
	Name: Terence P. Gallagher
	Title: Attorney-in-fact
	GEORGE R. ROBERTS
By:	/s/ Terence P. Gallagher
	Name: Terence P. Gallagher
	Title: Attorney-in-fact
	TAGAR C. OLSON
By:	/s/ Terence P. Gallagher
	Name: Terence P. Gallagher
	Title: Attorney-in-fact

	CHRISTOPHER J. HARRINGTON
By:	/s/ Terence P. Gallagher
	Name: Terence P. Gallagher
	Title: Attorney-in-fact
	JEFFREY LIVINGSTON
By:	/s/ Terence P. Gallagher
	Name: Terence P. Gallagher
	Title: Attorney-in-fact