This is not advice exactly, it's more Me wondering what I would do....
With regards to childhood crimes, I tend to look at the bigger picture.
It occurs to me she is frustrated because she has had NO choice in the matter. She is testing you to see which is more important....your new husband and his precious freakin' house (just thinking like a tween here) or her? It's THAT simple, from her point of view. She is acting out her frustration....
Kids wreck stuff. It's not OK, of course, but HERE, in your situation, there may be a reason for it. Other than a kid just not thinking. After all, respect for our things is a learned skill, which takes an entire childhood.....But here, she may be asking for you to be on her side. She maybe manipulating her environment the only way she knows how for something, ANYTHING to be about HER.
I guess whatever you decide to do, I hope you'll keep her close. Husbands and houses come and go, but your girl is your girl forever. I wonder in 20 years will she look back at this time with a warm wonderful feeling (that big ole fabulous house, her kind, patient Step father, her quirky step siblings) or will she be resentful that those people and that house took away her relationship with her mom?
Hope this helps!
:)
Added**Here's the thing....Whether you're 3, 11, or 60, you can't go around wreckin' stuff cause you're pissed off about your current living arrangements. A person needs to be able to communicate their feelings in an acceptable way. She will only learn this if YOU show her how. If she TRUSTS you, if she can TELL you how she feels, if she feels like her opinion MATTERS, she will be more likely to articulate what's on her mind, than ACT OUT what's on her mind.
Anyway, simply punishing this unacceptable behavior will not accomplish that.