In Guimont v. Clarke, 121 Wn.2d 586, 595, 854 P.2d 1 (1993), the Court faced with a facial takings challenge to the Mobile Home Relocation Assistance Act, chapter 59.21 RCW. That statute required "the owner of a mobile home park to pay relocation assistance to the park's tenants if the owner wants to close the park or convert it to another use." Guimont, 121 Wn.2d at 591 (citing LAWS OF 1990, ch. 171, 2(1)). Despite the obvious economic impacts of this regulation, this court rejected a facial challenge by mobile home park owners because they could not establish that the "regulation of their property's use under the Act denies them all economically viable use of their property." Guimont, 121 Wn.2d at 606.