There is one boat that's come on the radar the past few days, but the seller has asked me to call in reference to a list of questions that I have sent - which I took as a red flag.
It could be a red flag or it could just be that he doesn't like to write. Some folks are very bad at it.
You could make the call then write down what he said and ask him to sign it.
Same difference as far as you are concerned.
You may get even more information from a phone call.