The only way u will prob be able to do it if u let him cry.. I just made a post on how I finally got my son to sleep in his crib and that was my way of doing it..I would rock him to sleep then just keep doing it and he would cry but that is the only way they can get used to it. I know you are concerned about the neighbors being mad but I don't know any other way..TRUST me I have tried tons of things cuz I hated seeing my baby cry but thats the only thing that works...soon enough he will get used to it.
try an earlier bedtime- Nhi went to bed at 6:30 until she was like 8 months old- she now goes to bed (like laying down in her bed) at 8 pm.
I had luck with giving Nhi a morning nap like 1-2 hours after she woke up- I know that sounds really early but it worked and the rest of her naps were good if she had that nice morning nap-
she is now 16 mo old and takes 1 nap a day- GOOD LUCK!