It sounds like your daughter is buying an apartment in a co-op, if I read correctly.

Who is responsible for what repairs is most likely in the co-op agreement, which she should have been given a chance to read over before making her offer. If she hasn't read it yet, I'd suggest doing that first, as many of your questions should be answered by it.

If something isn't up to code, it does not necessarily need to be updated. Codes can change annually. A house built in 2004 is probably not "up to code" for the 2014 building codes, but it certainly doesn't need to be changed or updated. However, the co-op agreement may have some clauses about updating and keeping up to code.

If something in the unit itself isn't working, I suspect that the owner of the unit will need to get it repaired or replaced. Usually there is a clear division between what the co-op is responsible for and what the owner of the individual apartment is responsible for.

Generally, if, say, a toilet is clogged, the owner needs to fix it. But if there is a problem with getting water into the building, from the water mains, then the co-op is responsible for the repairs. Light in the common hallway? Co-op. Light in the apartment? Owner.

Camlan thanks for the reply. She is having the apartment inspected on Friday, she was not given a coop agreement, but am going to tell her about that ASAP.