Some are easier inspections than others but some turn into larger projects (this can be prevented with better screening in leasing but we inherit bad tenants or poorly ran previous property manager problems often). 

They should be able to provide rent and prevent maintenance. 

This will alert the owner that he/she is being fined and he/she will most likely take action to prevent multiple fines.

If the appearance of being in an LLC prevents one law suit it is well worth the cost but it may not ever prevent a law suit. 

Carpet can easily get stain and will smell over time especially if the tenant has children, pets or eats in the carpeted rooms. 

I am not sure what it would do to stained wood products, but you are correct about it getting smells out.

Adequate heating is essential for comfort and to prevent moisture-related issues.3.

Make sure you have a detailed scope of work signed by the contractor to prevent disputes.

I would also consider the possibility of raising the property as well to prevent further flood damage. 

How are they incentivized to prevent move-outs?