Does she budget for other longer term expenses, like car replacement and repairs, retirement, or college for kids (assuming she has kids)? If not, this should be a wakeup call that she needs to get her finances in order, because working a second job shouldn't be the solution to every periodic expense.

I don't know where you live, but at least in my area, I had to finish a new homeowner packet to get my mortgage, which laid out common expenses. AFAIK, that's a pretty common thing because banks don't want you to default due to an unexpected repair cost.

But maybe renting is better for her if she is unable or unwilling to plan ahead. My point is that, in most cases, owning ends up being cheaper than renting for the same space.