A.W.
Nicole
Maybe you could ease into by having whomever you want to have sit for you come over and spend some time with you and your husband at home. That way you can observe how she/he acts in your home and interacts with your child. Then maybe your husband will feel more comfortable leaving him/her in your home after getting to know the person first.
And as long as you two are spending quality time with your step daughter while she's there I'd be willing to bet she wouldn't be hurt or upset by you going out for a few hours. It's a shame that there are Mamas on here that feel the need to judge. None of us are perfect and what doesn't work for some works for others.
Anyway, good luck.