After law school, Mr. House served as a staff attorney at California Indian Legal Services. Mr. House represented several tribes and many individual tribal members. Mr. House successfully argued a sovereign-immunity case before the Hoopa Valley Tribal Court; served as coordinator for an intertribal task force that developed a tribal domestic violence code and negotiated provisions in a county-wide law enforcement protocol; assisted a tribal housing authority with federal-funding matters; and represented individuals in education and state-taxation disputes.

Between 2000 and 2004, Mr. House served as an associate at two firms specializing in Indian law; one located in California, the other on the Flathead Indian Reservation in Montana. Mr. House appeared before the trial and appellate courts of the Confederated Salish and Kootenai Tribes; advised tribal businesses, including a corporation chartered under the Indian Reorganization Act; drafted contracts, leases, land-conveyance instruments, fee-to-trust applications, tribal resolutions, and tribal code provisions; wrote briefs for tribal, federal, and state litigation; and provided counsel on federal housing laws, international trade between tribes, personnel and drug-testing policies, labor standards, tribal water rights, environmental compliance issues, tax matters, corporate organization, and gaming regulation.

Mr. House has practiced law at Alexander, Berkey, Williams & Weathers since 2004. He works in various areas of the firm's practice, including on tribal land, housing, commercial, environmental, and regulatory matters. Recently, he co-authored a LexisNexis Expert Commentary on a federal court decision applying the Nation Labor Relations Act to a tribal enterprise.