Let me start by stating that I know the golden rule: "If you need to ask if it's a scam, it very likely is". In this scenario my "spidey-sense" is tingling, however I can't quite see how would this scam work, if it is one.
This is in Europe.
Lately I and other neighbours started finding flyers in our mailboxes. The text on it varies slightly with each one, although it's fairly simple to tell that they are all coming from the same source (very similar styling, format, phone numbers from the same operator etc.).
They all contain some variant of the following (variance in brackets, translation mine, sorry if not entirely accurate):
Hello (dear neighbours) Our (My) name(s) are (is) "insert some common names here, John and Alice for example, varies with each note", and we are a young married couple (young man, recently moved for work). We (I) are (am) interested in buying an apartment in this localization. We are (I am) paying in CASH!!! Please contact us (me) @ "some mobile phone number, always from the same operator".
While I see how this could be a legitimate offer, the sheer number of these is setting off some kind of alarm for me. I found no less than twenty in my mailbox last week and they keep coming. Second thing that's off is that this is quite literally the most desirable part of town, and unless they (or their parents) are the top earners in the country, they probably can't afford to buy an apartment here, much less in cash. And if they are indeed wealthy, I find it hard to believe that they would waste their time sticking poorly designed flyers in someones mailbox, rather than delegating the job to an agency or a professional.
The flyers themselves must be coming with some other generic ones (local restaurants, cable tv and such) as no one noticed anyone unfamiliar putting these in.
If it's of any importance, nearly all of the owners here are old, retired people, with some younger ones who inherited their apartments.
I also haven't called the number on those flyers, since it might be some malicious number (redirecting my call to the other side of the world or something).
For now we asked the security guys (the terrain is not fenced, they just patrol the area) to look out for anyone suspicious. But I am still curious, what could be happening here; my only guess is that they are looking for someone old and vulnerable to scam them out of the apartment, but since selling requires a literal truck of paperwork with signatures of a specialized lawyer, I still am baffled.