But, keep in mind that an outside ramp does not need to be removed at their expense because it does not impair you from getting a non-handicapped tenant in the future.  

Or should I require that the Contractor pay the extra $4,000 before I make the $7,000 payment and get a another lien release, eventhough this may impair the Contractor’s ability to negotiate with the engineer?

DEFECT DEFINED: Under Indiana law, "Defect" means a condition that would have a significant adverse effect on the value of the property, that would significantly impair the health or safety of future occupants of the property, or that if not repaired, removed, or replaced, would significantly shorten or adversely affect the expected normal life of the premises.My take is that the buyer flippantly used an "as-is" condition to make a favorable offer but with no intention of standing by it. 

The Act defines persons with a disability to mean those individuals with mental or physical impairments that substantially limit one or more major life activities.

You can’t sign contracts with people that are mentally impaired.

If banks are issuing debt that they believe will have an average duration of 7 or so years and are pricing it accordingly I guess you could argue that their interest is being impaired a bit by someone piggybacking on the note and extending the average duration.

In the cases I am first-hand aware of, my company didn't experience any financial impairment.

The thought that a product was sold to someone impaired that was in a car crash or hurt someone else is not worth any amount of profit to me.

that could have made them seem impaired. 

Unfortunately, that astonishing figure represents just 1% of the 112 million adults in the U.S. who self-report episodes of alcohol-impaired driving each year.