Samir -
I asked this before but you didn't respond:
On your final walkthrough, did you sign something saying that everything was satisfactory? If yes, then you may have a problem. What you are describing is not a "hidden defect" that you could reasonably claim was not visible to you.
Sorry I must have missed it.
I did final walkthrough and I found few issues which was listed in the checklist. The checklist I signed says following. What's your input?
"List below all items which are incomplete or require repair. Buyer acknowledges this to be the only opportunity to note cosmetic corrections. Except as noted above, buyer accepts property as presented. Buyer agrees to assume all utilities payment on settlement date and has made arrangements for final meter readings. Buyer understands his obligation and responsibilities of home ownership and maintenance and further agrees to maintain house and lot in normal repair. This shall in no way reduce the builder's responsibility for warranty items to which the owner is entitled, in accordance with approved standards. buyer grants to builder and it's contractors permission to enter the premises move-in during normal business hours for the purpose of completion or repair of listed items, warranty items, or township required items."