In fact, my hu*****and bought the house before our marriage (my name not in the house title). All the utility bills are under his name only. I don't recall the immigration office asked for the utility bills or house title during our interview.
We did show him the bank statement (join bank account), my hu*****and's life insurance policy (I am the beneficiary) etc. The office didn't really look at too much of our documents. I brought a FULL bag of supporting document with us and he only check out a few. I got the I-551 (?) stamp on my passport right there during the interview.