Letter to a hoarder and squatter

[Noah Jenks]

There are a few vacant properties I am looking at; one is filled with a hoarder's "treasures" and the other is a property that the owners have walked away from, occupied by squatters, and the bank is waiting out the clock to foreclose on it.  Both are structurally sound.  I have already gotten the owner's information from the county assessor's website, but I am unsure how to phrase a letter to these owners.  I want to be sure to include some sort of call to action rather than a generic "call me if you want to sell me your house for ridiculously cheap".

If you have done these types of deals in the past, I'd love your thoughts on how to phrase a letter and what actionable steps you gave the owner.