How does the legal and social policy context in which lesbian and gay Americans live infl uence their day-to-day experience? The current historical moment is an intriguing time to consider this question. At the time of this writing, many important legal and policy changes that affect sexual minorities are occurring in the United States. After many years of lesbian and gay Americans' enduring hostility from the legal system (Maggiore, 1992;Murdoch & Price, 2001; Rubinstein, 1996), their struggle for equal rights under the law seems to be gathering momentum in some jurisdictions, even as it suffers setbacks in others. As a result, lesbian and gay lives are changing, and an unusual opportunity to observe the impact of legal and policy change upon human behavior is before us (Patterson, 2004).This chapter begins with an overview of the legal and policy contexts in which lesbian and gay Americans live today and then explores some of the ways in which issues of couples, parents, and families are infl uenced by these contexts. Throughout the chapter, the primary focus is on lesbian and gay couples and families in the contemporary United States, and the main