Disclose, disclose, disclose.  That is some of the best advice a home seller can hear and heed.  Moreover, when there's a gray area that raises questions, I tell my clients, "If you need to ask me if you should disclose 'x' or 'y' or 'z', my answer will be 'yes'.  Here's a short article on the subject from Texas REALTORS®:

What's a Seller's Disclosure?

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