Is 2018 the right CODE for now?

Arbor homes always told me they passed the CODE and wanted to explain the issues to me. I searched online and found the 2018 Residential CODE. All the issues listed on the inspecto's report are against the CODE.

Since Arbor homes is a big company and are professional in building houses, they should know the CODE better than me. Kind of confused why they always said they passed the CODE? Did I use the wrong code?

I am the second buyer for this house. The first buyer walked away from this house for some reason which I don't know.

According to the following laws and concepts, buyer have the right to terminate the agreement. What if the agreement itself does not write these down?

I did wrote email several times to request the corrections of the bear load wall, the builder really told me that they have fixed the issues under the instruction of the county inspector but refused to show me any documentations. After the repair, one safety hazard and one structural damage appeared.

I also wrote several emails asking them to fix the issues found by the first inspector and they didn't take care of them.

I don't understand why they call it buyer's default? Are the following Laws and Concepts common practice?

Key Kentucky Laws & Concepts:

1. Kentucky Notice and Opportunity to Repair Act (NORA - KRS §§ 411.250-266): This law gives contractors a "right to cure" (fix) alleged defects before a lawsuit, requiring specific notice from the homeowner and a chance for the builder to repair or compensate.
2. Material Breach: When a builder's failure to perform (like making repairs that cause moredamage) is substantial, it's a material breach, giving you the right to end the contract and seek remedies.
3. Implied Warranty: Kentucky law implies a warranty that services (like repairs) will be done in a "good and workmanlike" manner, meaning competent work. Causing structural damage is a breach of this warranty.
4. Rescission: This is the unwinding of the contract, putting parties back to their original positions; courts grant it for significant issues, like unconscionable performance or major defects.