When Jaime and Antonio are fighting in the bodega and Jaime kicks Antonio into the wooden shelving unit, the use of a stunt double is extremely obvious due to the stunt double looking significantly different from Isaiah Washington.
When Jamie supposedly spins the fan blades at super-speed with her hand, the fan hesitates for a second after she pulls on it, making it obvious that her "spinning" the fan is just the fan motor coming up to speed.