The VA has a great many ways to assist those seeking a VA mortgage, but there are also restrictions. When you purchase a home using a VA home loan, the VA does not offer guarantees that your home is free from defects.
While the VA does conduct an appraisal of the property, this should not be misconstrued as an inspection or approval of the condition of the property. The VA does not order builders to correct problems or defects in the construction of your home. It's the buyers responsibility to seek expert advice about the condition of a property before purchase.
Additionally, the VA cannot offer legal counsel of any kind. The buyer is responsible for being informed about rights and responsibilities with regard to new property purchases. When in doubt, hire a lawyer or an expert in property evaluation.