Tipping Neighborhoods means to:

1. Find a shabby neighborhood that appears to be in the natural inevitable path of gentrification.
2. Somehow purchase and get a large percentage of the homes spruced up and rented.
3. Join the neighborhood group to meet and encourage your neighbors to reinvest in their homes.
4. Watch as the neighborhood "tips" toward respectability and higher values.
5. Make a lot of money without being viewed as a "greedy developer".