While this is municipality dependent, if the contractor is not licensed you likely cannot obtain the necessary permits and approvals.

Simplified ManagementFor those managing multiple properties, AB 2622 streamlines operations by expanding your hiring pool and removing the red tape often associated with minor repairs.Why It Matters for TenantsTenants also benefit from AB 2622:Faster Maintenance: Minor issues like plumbing or lighting can now be resolved promptly.Fairer Move-Out Costs: Affordable repairs mean tenants aren’t hit with inflated charges for damage beyond normal wear and tear.Things to Keep in MindWhile AB 2622 makes maintenance easier, landlords should still vet unlicensed workers carefully, ensure proper insurance coverage, and remember that jobs requiring permits must involve licensed contractors.AB 2622: A Win-Win for California’s Rental MarketAB 2622 strikes a balance between flexibility and accountability, making it easier for landlords to maintain high-quality rentals while fostering better tenant relationships.

Our office signed the contract and they got the permit and replaced the drain field.

Or, in most metro areas, you can obtain the list of permits that have been issued, and see who is receiving permits. 

Duplex have different zoning that may permit additional units.

How unique can you get a permit?

I understand there is a cost to have it burned down. the home would have to be prepped to to meet the requirements for permitting.

Goodin Development has no filings with the SEC authorizing it to raise money, has not pulled any permits and is not mentioned in any of the numerous news articles discussing the development and the companies involved.If you are thinking of sending Justin Goodin or Goodin Development any money - THINK TWICE!!

The last you want to do is make an enemy of the firemarshall as they could permanently pull your permit to be able to rent at all.

Quote from @Sherry McQuage: Make sure to check the zoning to make sure mobile homes are permitted there; check for any hazardous waste designation for the area; will you need to have the parcels surveyed out in order to sell the size you intend?