"to John Smith, My Client (buyer)"

This means "sold the house" to your client?

When you change the material facts, you change the picture.

I doubt he was surprised when he "found out" in 2021 that the house he was buying was his. That's why you would be buying it.

"Mr Smith purchased two house(s) his and the one next to it. Mr Smith's residence was in his Trust. This house was not in trust. Was it a gift?"

You changed to Buying. Was there a mortgage or note payable agreement? Was someone paying someone?

Did you want to answer the rest of sjrcpa's questions? Look to the legal documents.