Found Cat Looking For a Foster Home

Posting this for a friend. If you can share this info and help us find a foster home for this adorable sweet cat, please contact me. This cat is going to the vet today and getting fully checked.

This cat approached us at 4:30 in the morning in front of our building on St. Johns Place. S/he followed us without any hesitation into our lobby and up the stairs. The cat is extremely friendly and is already sitting on my lap. I would guess it's about 6 months old. Would anyone be able to foster it until we can find it a home? Our cats are going crazy.