Romance of the Three Kingdoms IV

#1: Money is based on taxes so the cities with the highest populations will provide the most money. Also, developing your cities' stats(economy, farming, technology, dams) will help your population grow and help your cities will more provide money. One thing to remember is that armies have to be paid at tax time. Keeping a large amount of troops in a city with a low population will hurt your income, maybe even pushing you into the red.

#2: There is a command to move generals to cities. If memory serves it is the first command under the "Army" menu. A general can only move to one city per month and only to connecting cities. Therefore if you have a wide range of citites it could take six months to move a general from one side to the other side.