In no particular order, but it seems like all of these should be done:
1. Talk to your professional liability insurer. How much of his work will they cover you for?
1a. If you do take the project(s) over, will they charge a one-time premium for the added responsibility?
2. Read your state's rules about what you are responsible for.
3. Contact his professional liability insurer.
4. Review the relevant building code to see what it says about changing the "professional of record" during a project.
5. Talk to the AHJ about what you might be responsible for.
Can you "fix" the parts of his work which need updates, and stamp/sign the drawing with a note that says "I'm only responsible for these specific parts" ?
Does the AHJ / local code require the design professional to be involved during construction? If yes, your liability insurer will be interested.
Will his liability insurer sell his widow "tail" insurance that could cover his prior work? If there is a liability claim, he and his estate would probably be named. Better for her to let the insurer deal with that.
My wife has asked me, a few times, the proverbial "what do I do with your in-progress projects if you are hit by a bus?" The best I've come up with is "someone will be able to extract drawings from the computer". One of those topics often swept under the rug.
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Joel Niemi AIA
Joel Niemi Architect
Snohomish, WA
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