Quote from @Mike Dymski:
What does the contract say? We have 20 replies and are missing what matters. It does not matter what happened in the past, or with another builder, or during pandemic policies, or what we feel should happen...none of that is relevant.
Regarding the Final Orientation / Walkthrough, it's worded like it's a suggestion not a requirement. However, their Default and Termination clause has me worried:
“Notwithstanding the foregoing, Seller, in its sole discretion, without being in default, may terminate this Agreement by written notice to the Purchaser and the payment to the Purchaser of a sum equal to one percent (1%) of the Purchase Price of the Property. Upon the tender of said payment, whether accepted or not, neither party shall have any liability to the other.
Upon either party giving a written notice of termination as provided herein, the Seller shall be entitled to offer for sale and sell the Property to any other person unfettered by any claim of the Purchaser. The parties specifically agree that after any notice of termination is given by either party to the other any claims shall be limited solely to the payment of the sums provided herein and no other claim shall be asserted against the either party or the Property.”