And i realize that low income area doesn't appeal to every investor due to their strategy & comfort level... 

Kevin does my property tax appeals, but I think he does other stuff too.

It makes the property much more appealing to investors, and if it hits the market and is a good deal.

I am also looking in an area that has a summer vacation rental, and longer term winter appeal too.

Lots of small units, 1br/1ba's or 2br/1ba's, not very appealing to middle class families. 

yes, i would put it on craigslist for dirt cheap. that way you are sure it will be gone. make sure you put in the ad that the buyer must remove it, then you have no cost in removing it yourself. it adds no ARV to the house. a usable patio would add more value and appeal to many more perspective buyers

Bradley, which was appealed up to the Supreme Court.[31]The District Court in Milliken had originally ruled that it was necessary to actively desegregate both Detroit and its suburban communities in one comprehensive program.

1 card appealing to home buyers with a message similar to what I wrote above and a 2nd card with a call to action (say a property spreadsheet that adds up ROI)to hand out to fellow investors?

I would build something that matches your existing block in terms of unit size and design, because it obviously appeals.

BP -I generally look at standard 2-4 family MFR investments, but the returns on 5+ unit res/com are very appealing.