[1][2] Miller was appointed to the Los Angeles County Superior Court by governor Edmund G. "Pat" Brown in 1964 and served until his death in 1967.

In the wake of World War II, many blacks had left their rural southern homes to seek economic opportunities in California, only to face discrimination and bias, particularly in housing.

A staggering number of lawsuits were brought, approximately two hundred were filed in Los Angeles in a four-year period, and other cities had much the same experience.

[9] Miller won the court case Fairchild v. Raines (1944), a decision for a black Pasadena, California family that had bought a nonrestrictive lot but was sued by white neighbors anyway.

In 1945, Miller became the attorney for the restrictive covenant case representing Hattie McDaniel, Louise Beavers, Ethel Waters, and others of the stars that had moved to what was called the "Sugar Hill" section of Los Angeles.

His reason: "It is time that members of the Negro race are accorded, without reservations or evasions, the full rights guaranteed them under the 14th Amendment to the Federal Constitution.

The son of a slave, Miller found that housing discrimination was among the most explosive social problems in the nation and spent years representing the interests of low income clients.

As a board member of the American Civil Liberties Union (ACLU), he became a well-known spokesman for the rights of minorities to enjoy equal access to housing and education.

He denounced as "money lenders" and "hucksters of prejudice" the owners of slum properties where many members of minorities are forced to live under substandard conditions because of the "artificial housing shortages ... in the Negro community.

[14] Later, Miller was named co-chair of the West Coast legal committee of the National Association for the Advancement of Colored People (NAACP).

In the ensuing years under Miller's stewardship, The Eagle continued to press for the complete integration of African Americans in every sector of society, and to protest all forms of Jim Crow.

In 1964, California Governor Pat Brown appointed Miller a Los Angeles Municipal Court Justice, where he served until his death.

As a "ward" of the U. S. Supreme Court for the last 100 years, the Negro has had to solicit assistance in order to exercise the rights and privileges taken for granted by other citizens, from riding on Pullman cars to voting in primary elections.

From its infancy, LMBA adopted a vigorous platform of confronting institutionalized racism and the myriad social and economic disparities affecting the African-American community.