Much of that language is fine if you can get it. Establishing a contingency threshhold like that is appealing, but there's also danger in placing a dollar value on the standard of care. By applying an objective criteria to what has always been a subjective determination, you may make it easier on yourself when you're within that 3%, but harder on yourself when you're over that number. In assessing whether it's work the risk, you'll also want to consider how your insurer might view that threshhold clause.
As for that betterment language, assume an architect omits a necessary element from the design, that it's discovered during construction, and that the owner issues a change order to add it. The damage caused by the architect's negligence is measured by the difference between the cost of having that item included at the bid stage and the cost of adding it as a change order. The architect should be responsible only for that premium, to avoid a windfall (or "betterment") to the owner. This is common sense, but sometimes gets lost by judges, so I've seen it added to contracts by way of clarification. But your clause says "all costs" of errors that "result in" betterment are on the owner. It reads as if you're asking for a waiver of something the owner had a right to recover in the first place. The whole point is to clarify that certain damages aren't caused by the architect's error or omission at all. And by making appear like a waiver rather than a common sense clarification, it makes the negotiation harder.
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Martin Onorato
Robinson & Cole LLP
Hartford CT
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