Covered Porch doesn't have permit does it affect Sale Contract?

[Elizabeth Hernandez]

Good Afternoon, On May 20th, 2020 they buyer signed the contract to buy AS IS no warranties. my mom in California sold a mobile home AS IS condition contract in May 20th, 2020, Closing date May 22nd 2020. The buyers were told that it had a covered porch they saw the porch and they inspect it themselves. This covered porch has no permit because 13 yrs ago we asked the previous park manager if we can cover this porch and she said yes but to use it as a storage. This covered porch has 3 walls and a ceiling and it's detachable. I ask the previous park manager if we needed a permit but she said no because it was a covered porch. Now after more than 17 days after the closing date the buyers got 2 inspectors one saying that there are termites in the mobile home the other one saying that the covered porch extra room doesn't have a permit and is not up to code. What can we do to fix this issue how can we defend ourselves. The Mobile Home was sold AS IS and the buyer was asked in person and by text message many times if she wanted to buy the mobile home AS IS and she said Yes, verified and reconfirmed many times. Please give us advice how to defend ourselves? and about how the inspection is too late to be valid? Will my mom be able to win this case?