Anonymous wrote:OP here. Thanks everyone! I talked to her this week and acknowledged the fact that it has been impossible for her to provide any childcare for us during the week because of her schedule, so I asked her to be responsible for cleaning the girls bedrooms and doing their laundry once a week, plus loading/unloading the dishwasher. Plus, if/when we need her on weekends for childcare she will provide it. I also stressed the fact that she really needs to get a car, unless she manages to move (and work/study) to DC. She spends a lot of her time waiting for the metro, walking to the metro, waiting for buses, etc. And it is expensive. I think her life will be easier with a car, even job opportunities since most people require their sitter/nanny to have a car.
She is on a student visa, so she doesn't have permission to work but there are plenty of sitter/nanny jobs out there and people don't even ask about that.
Let's see how things will work out from here on.
Public transit is nowhere near as expensive as owning a car, something she is likely to discover when she looks for one. Even if she is spending a couple hundred dollars a month on bus and metro, unless she is also making heavy use of cabs and uber, she is coming out ahead of a car payment + gas. I wouldn't get your hopes up there unless someone (you?) basically gives her a car.