Famed Attorney Clarence Darrow would be brought in by The NAACP to defend them at trial. A mistrial would eventually be declared, and the subsequent retrial would ensure the freedom of Dr. Ossian Sweet and his comrades.
Though racial codes were already routinely used in real estate contracts, this practice would be made more aggressively in the aftermath of his victory in court. Dr. Ossian Sweet's life would never again be the same. His wife and daughter died shortly after he was freed; and he would be harassed over taxes, medical licenses, and more for decades. He would ultimately commit suicide in 1960. The house on Garland Road is now listed upon those preserved by The State Of Michigan, as a historical landmark.
SOURCES:
http://www.blackpast.org/aah/sweet-ossian-1895-1960
https://www.nps.gov/nr/travel/detroit/d4.htm
http://www.detroit1701.org/SweetHome.htm