Once again, Noobdog nails it with advice to the newcomers.

It looks like a nail is poking out or something puffy under the house wrap This was a home built by Ryan homes.

I have bought properties that needed roof and sometimes we would need to get on the roof to tell if there was one or two layers of shingles, but we always new how many layers before we started the job.You also said "they looked in the attic and didn't see any need for redecking" It would be blatantly clear from looking in the attic that there was more than one layer of shingles (look at the number of roofing nails sticking through the decking).As for uncovering bad roof decking during the tear off process, sometimes you just don't know until you tear off the shingles, other times its obvious from looking in the attic or walking on the roof.Sounds like this company has taken you for a ride.

J Scott nailed it, the only other thing I can think of to consider is days on market for each.

That's something none of us will be able to nail down for you unless we happen to be investing in the same neighborhood.

Bill Gulley really hit the nail on the head with his answer.

Getting nailed for just "Occupancy Fraud" usually isn't the only charge, you also may get mortgage fraud, conspiracy, mail fraud and a host of other charges along with it.

you nailed it on the nose.

& we have nailed some amazing deals by being persistent & low balling.I watched a great duplex MLS'd for $89,900 for 18 months as the price dropped.

Do not hand over the keys until you get this nailed down.