mrsvistamio: to accomodate to both, talk to your husband not to stay with either in-laws place. If money is not a issue, keeping your current house is already a good idea to nurture the child. I mean, less voices in the house, less opinions, less conflicts, less instructions, less confusion to the child.
We all know how it's like to listen to different instructions from more than 2 adults(dad and mum) in the house. And if we are to add in the grandparents, they sure have their own say on the child and yet we can't say anything to go against them just because our style is different from theirs. The the poor child will be like, "mum says cannot do this but granny says can? so I shall ignore mum's words since I have granny as backup".
Got to let husband know, it's not that his parents teaching is wrong, but as parents, you also have your own style. Grandparents may want to see the child very often, so suggest to him since you are not working, you can always bring the child dropyby at in-laws place for a lunch or dinner once every few days instead of staying at their place.
Even if you are to move in and rent out your own place, when the child grows up, won't the in-laws place be crampy, especially the child will want to have a room of his/her own to study?