Aaron, I'm definitely not an engineer and I have not even recently stayed at Holiday Inn Express but I second Rick's comments about moisture at tub boxes and add that the site drainage should be at least rough graded to keep moisture from flowing toward the foundation while everyone is arguing. Just the water from one good storm flowing under the slab could cause more damage than whatever it is that the lawyers are concerned about.

I would imagine that the safety factor on that slab and piers means it is way overbuilt so it can handle being unloaded, unless the ground starts moving from excess moisture.

Good luck, Jim

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Jim Luttrall
Mr. Inspector.net, Inc.
Allen, Texas 75002