What legal strategies can families in the community do to improve their situation?

Here are several strategies that community could do:

- Gathered up several members of the community and work together to establish proper business entities to boost the economy in that community.
- Propose a locality developed programs by signing petitions and bring it to the government representative in your community to ask about building some infrastructures
- Create a cooperation proposal with other communities to do mutually beneficial projects

Reserved powers is your answer

The best bet is to google