It is so very sweet of you to try to care for such tiny kittens.
If I were you, I would look for a nursing mother as they will often adopt kittens from a different litter.
You might try posting to the "pets" forum at
www.craigslist.org for your city, calling area vets, calling area shelters, calling local charities that work with cats. If you can find a nursing mother the kittens will be a lot better off and you won't be risking eviction!
Good luck!