. 8 . leases taxable reit subsidiaries leases we lease substantially all of our hotels to a wholly owned subsidiary that qualifies as a taxable reit subsidiary due to federal income tax restrictions on a reit 2019s ability to derive revenue directly from the operation and management of a hotel . ground leases as of december 31 , 2018 , all or a portion of 25 of our hotels are subject to ground leases , generally with multiple renewal options , all of which are accounted for as operating leases