My three week old daughter is only willing to sleep in my room and refuses to shut her eyes if she is in the living room or my parents in law's room no matter how tired she is once the sun sets. Daytime she is still not as fussy. Any ways to train her to be able to sleep in any rooms or be soothed to sleep by my other family members?

My friend uses a singing technique to lull her daughter to sleep. Everyone else in her family -- from her parents to the helper --- learns that song and they'd sing it to her whenever it's time for her to nap or sleep. It took a while to condition baby to fall asleep whenever the song is sang but it works. Just a suggestion you might want to try, on top of the great ones already suggested by Hui Qun.