Regarding disclosure, if there are any obvious and/or known issues their is a duty by the Realtor to ensure that all parties are informed of them. However, if it is an unknown latent defect (a defect that is reasonably not visible upon inspection) a Seller and/or Realtor cannot disclose what is unknown.
Actually, the standard NJAR (NJ Association of Realtors) Contract of Sale is an "AS-IS" contract, however, you still have a right to an inspection to determine basically "How Much" "AS-IS" you are willing to accept.
I always recommend to ask the question of requesting something to be repaired rather than not as you do not know if you do not ask! However, all this should be done prior to the closing.
As I am not an attorney, I cannot offer you legal advice, however, any attorney who will represent you is their to protect your rights and you should take full advantage of it.
I hope this helps.
If you are in need of additional guidance I would be happy to help you in your search. Just give me a call at 973.868.4034 or send me an e-mail at email@example.com to get started.
Emil Veltre, RPh, MS, CDPE