we ARE changing the paint colors {obviously}
best way to transform a space
i would go very light in Sara’s living room.  the natural light is sparse, and the sofa eats light {dark color, flat finish}.  so, elmira white for the living room.  
the dining room gets hazy lilac, giving it tons of personality, while it is still sophisticated and quiet.  that new chandelier on a dimmer and this paint color ~ some very fantastic dinner parties are sure to follow.  
the kitchen, back entry and hallway get Pismo Dunes {inspired by the sofa color}.  it will set off the white kitchen cabinets and the black and white floor, and give the architecture a boost via the contrast.
all the walls are in an eggshell finish, all of the trim should be semi gloss china white {including the dining room corner cabinet}.  
the site lines in the house are great, you see from front to back framed by the great moorish arches.  these color story will play beautifully from one room to the next.