My Mandevilla Plant Is Showing Spotted Leaves- What Could It Be?

Question

I want to prepare it to bring indoors but with the spotted leaves I think it may have some issues.

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Answer 1

Just a guess, but it looks like a burn from some airborne substance? Possibly a spore, mold, or fungus of some kind.

I'd let it be to see if it spreads or develops more. Watch it closely. If it stays the same, more likely a substance, if it grows then more like a spore, mold, or fungus.

It's both on the edges of the leaves, and near the viens, so I don't think it's an insect.