Give a sample introduction of social problems?

Obviously we can't write the whole thing for you but if you want ideas, I think a really big one to get your teeth into is the issues arising from a mixed community of religious and ethnic background, particularly where those mixes contain factions that have clashed in the past. Add in that they may be in a poorer part of a city, perhaps even ghettoised, then add a drug/crime culture.... yeah, I think you'll see some social problems.