To review, there are three concepts to determine before you begin writing your essay: the tone, the audience and the purpose. The tone is the attitude of the writer. Two factors that greatly affect the tone are audience and purpose. The audience of an essay is anyone who might read it.
The White House is not in a state. It is located in Washington, D.C. The District of Columbia is a federal district that Congress established in the late 1700s with land Virginia and  Maryland donated for the purpose of serving as home to the nation's capital.
The White House is the residence of the president and his family. It is their home. It also is where the president works. He has a 'home office' there. The Oval Office is in the White House. The White House has private spaces and public spaces. The president's quarters are private and not at all open to the public.