After divorce, there are probably stepfamilies, one, maybe two. The addition of “steps” often instigates new problems, followed by new legal cases.
Some therapists concentrate on stepfamily issues. And one of the things that they say affects how well the stepfamily unit works internally is the house they live in.
This Detroit News article: Pointers on housing for your soon-to-be blended family offers some advice on choosing a home that will help the stepfamily blend well.
And if you think the article is helpful, you can find more in that vein at the Stepfamily Foundation.