TheAnyKey said:
Currently I have 2 towns and 5 castles. I get no, "none", rent from any of those locations. I have my own kingdom and am at war with all other factions.
1.) What do I need to do to get rent?
2.) How do I get rid of tax inefficiency? (Currently at -24%)
There are a few things you can do.
1. Decrease the size of garrisons (or fill the bottom of the garrison with Tier 1 troops to keep up battle advantage.
2. Go change your domestic policy. Read the Floris Wiki on domestic policy to see what changes you can make to decrease tax inefficiency.
3. Use Tweak MB to change tax inefficiency.
4. Give some of your castles to a lord and let him deal with it. However, remember that policies you adopt which lower tax inefficiency for you raise it for your lords and lower their relationship.
When you first become a king you can set policy and change everything you want. After that you can only make incremental changes every couple weeks. So, do your research and think about the long game. Eventually, you will get lords and there's no point in making them hate you and then they take their castles when they leave (I don't even know if they can do that but I don't see why they can't).