house rules
"one rule-some basic respect to the Stepmom", that, to me, is very vague and abstract.. the respect to the lady of the house should be carried out by following some rules, some reasonable rules set.
if i were you, i would set some specific rules together with the hu*****and, such as keeping the house clean and tidy, no loud TV/music after certain hours, no girlfriends/buddies overnight, no smoking inside the house, no excessive alcohol, no durg/other substances (God forbid that he doesn't have those issues),adn that the rules should apply to all family members, not just him.. your daughter has to follow that too, to be fair and equal..
the purpose is to enure a healthy peaceful environment during this unsual arrangement, until he moves out.
other than that, leave him alone.