Have a Template for a letter offering to buy unlisted property?

[David Sweigard]

There are 2 under-cared-for properties in my street.  These properties are not listed for sale, so I'm looking to connect with the owners to ask if they'd be interested to talk about selling and open that conversation with them.  My thought was to send a letter.  Does anyone have a template for a letter such as this that you'd be willing to share, or a suggestion for approaching these folks?  One property owner lives at the residence and the other lives somewhere else and is renting that property.  Love to hear your thoughts!  Thanks!!