One of the largest hurdles for people wanting to live in a Tiny House is access to land. Land is expensive, in growing short supply and people want a balance of having land and being close to city or town centers where they can access services, entertainment and employment.
This page describes the most common path to U.S. citizenship, which allows a green card holder (permanent resident) of at least 5 years to apply for naturalization. Other paths include:
Exception to Five-Year Rule for People Married to a U.S. Citizen. You need to wait a mere three years to apply for U.S. citizenship if, during that time, you have been a permanent (or conditional) resident married to, as well as living with, a U.S. citizen. (See the Immigration and Nationality Act at I.N.A.o, for example, you could have gotten a green card through your employer, then married a U.S. citizen soon after, and you still need wait only three years from the date of your marriage to apply for citizenship.