You used the term stepdaughter, so this tells me a little bit. I don't have any steps but in my sibs do. They call them sons and daughters. It's a trailer, not worth it. It probably sits outside in the weather all the time and is only used a few times a year anyway. Let them use it, life is to short.
BTW, have you ever put a ding in your truck, trailer, tractor? You did and you let yourself drive it again???!!!??? Man I wouldn't.
Oh and yes I do loan mine out, sometimes the locals up at the weekend place use it and I don't know about it. I'm not worried about it. Worse thing I had to do was wash off a little fertilizer, my yard thanked me!!