S.K.
how old is she now. you may want to try to move her nap a little later try from 1-3, 2-4. about 20 mos my daughter started napping later... i don't let her go past 4PM b/c then it messes with her night time.
i think you need to work on letting her play in her crib by herself. my daughter loves her crib. she's 2.5 now and doesn't necessarily nap all the time but she will play quitely in her crib for the 2 hours. soemtimes she gets up early in the AM, and she just plays in her crib and doesn't yell out for us or anyting until she hears our door open, or i open her door.
i have her and a 7mos little boy - so yes i try to get us all to nap at the same time too..... even if she doesn't sleep in her crib... she needs to be able to play in there quitely for the 2 hours so you can sleep too.
even at night time she's in her crib at 8pm.... sometimes she's asleep within 15/20 minutes... other times i hear her playing up to an hour.... i go in and tell her it's time to go to bed and stop playing. she has 3-4 stuffed animial in there with her and i can hear her talking to them, tucking them in etc...