Hmmm, Einstein says COL is around 25K according to their website, but other estimates say 35K which makes sense NYC is expensive.
140K for Einstein
212K for Pitt
260 K for Stanford
I feel like Pitt is the best option for you here. Sure it is ~70K more expensive, but it is a stronger program than Einstein at the moment. Wasn't Einstein put on probation last year? I feel like that has been swept under the rug since their free tuition was announced. Maybe they already corrected their shortcomings, idk what is going on with that. I feel like the research infrastructure, the school's stability, nearby family support, and familiarity with the area at Pitt will be beneficial. Plus Pitt has great residency programs in most specialties.
I would only choose Stanford in your situation if you wanted to do a dual degree, like an MBA, or wanted to match in California - as it doesn't seem like you have ties to the west coast? You seem to have a lot of reservations about Stanford, but remember you got into these awesome schools and got these awesome opportunities - you are just as deserving as any other student that got into these schools. Don't feel like you are out of place anywhere you go because of a self determined "lack of qualifications/status". You belong there and make space for yourself.