For instance, you have to disclose if there has been a flood in the basement, because mold spores could have gotten started, and they could crop up again if they come in contact with moisture again.
If there was an actual fire, that's something that should be disclosed. Fire can affect the structural integrity of a house even if the charred parts are replaced.
I really can't give you more advice than that, because I don't know what the person who's having you sign the disclosure plans to do with it. Maybe it's more of a release form?
Your agent at the time you sell could advise you better. As far as whether or not to sign the form, what happens if you don't sign it? If you do sign it, you should speak to an attorney first.
On the surface, this does not appear to be a major problem and I am curious as to why anyone would need a disclosure signed. What would the disclosure say. How would this in any way affect future market value? Looks like this was a while back looking at the date. What happened. We are always curious about these strange and unusual incidents and strange builder requests such as this.
Robert McGuire ASR
Your Castle Real Estate
Direct - 303-669-1246