diff --git a/pom.xml b/pom.xml
index 4cdfe0b..f34fd0a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>me.totalfreedom</groupId>
     <artifactId>TFGuilds</artifactId>
-    <version>0.2.6</version>
+    <version>0.2.7</version>
     <packaging>jar</packaging>
 
     <name>TFGuilds</name>
diff --git a/src/main/java/me/totalfreedom/tfguilds/command/CreateRankSubcommand.java b/src/main/java/me/totalfreedom/tfguilds/command/CreateRankSubcommand.java
index 931baba..31468c5 100644
--- a/src/main/java/me/totalfreedom/tfguilds/command/CreateRankSubcommand.java
+++ b/src/main/java/me/totalfreedom/tfguilds/command/CreateRankSubcommand.java
@@ -2,7 +2,7 @@ package me.totalfreedom.tfguilds.command;
 
 import me.totalfreedom.tfguilds.Common;
 import me.totalfreedom.tfguilds.guild.Guild;
-import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang.StringUtils;
 import org.bukkit.ChatColor;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
diff --git a/src/main/java/me/totalfreedom/tfguilds/command/DeleteRankSubcommand.java b/src/main/java/me/totalfreedom/tfguilds/command/DeleteRankSubcommand.java
index e328472..a01f19f 100644
--- a/src/main/java/me/totalfreedom/tfguilds/command/DeleteRankSubcommand.java
+++ b/src/main/java/me/totalfreedom/tfguilds/command/DeleteRankSubcommand.java
@@ -2,7 +2,7 @@ package me.totalfreedom.tfguilds.command;
 
 import me.totalfreedom.tfguilds.Common;
 import me.totalfreedom.tfguilds.guild.Guild;
-import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang.StringUtils;
 import org.bukkit.ChatColor;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
diff --git a/src/main/java/me/totalfreedom/tfguilds/command/GuildCommand.java b/src/main/java/me/totalfreedom/tfguilds/command/GuildCommand.java
index 2965ebd..a84706c 100644
--- a/src/main/java/me/totalfreedom/tfguilds/command/GuildCommand.java
+++ b/src/main/java/me/totalfreedom/tfguilds/command/GuildCommand.java
@@ -1,11 +1,17 @@
 package me.totalfreedom.tfguilds.command;
 
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
 import me.totalfreedom.tfguilds.Common;
+import me.totalfreedom.tfguilds.guild.Guild;
+import me.totalfreedom.tfguilds.util.GUtil;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabCompleter;
 
-public class GuildCommand extends Common implements CommandExecutor
+public class GuildCommand extends Common implements CommandExecutor, TabCompleter
 {
     @Override
     public boolean onCommand(CommandSender sender, Command command, String label, String[] args)
@@ -65,4 +71,45 @@ public class GuildCommand extends Common implements CommandExecutor
         }
         return new HelpSubcommand().onCommand(sender, command, label, args);
     }
+
+    @Override
+    public List<String> onTabComplete(CommandSender sender, Command command, String label, String[] args)
+    {
+        Guild guild = Guild.getGuild(sender);
+        if (args.length == 1)
+        {
+            return Arrays.asList("addmod", "chat", "createrank", "create",
+                    "deleterank", "disband", "help", "home", "info", "invite",
+                    "join", "kick", "leave", "list", "motd", "removemod", "rename",
+                    "roster", "setowner", "setrank", "setstate", "tag", "tp");
+        }
+        else if (args.length == 2)
+        {
+            switch (args[0])
+            {
+                case "home":
+                    return Arrays.asList("set");
+                case "info":
+                case "join":
+                case "roster":
+                    return Guild.getGuildList();
+                case "motd":
+                case "tag":
+                    return Arrays.asList("set", "clear");
+                case "setstate":
+                    return Arrays.asList("OPEN", "INVITE", "CLOSED");
+                case "invite":
+                    return GUtil.getPlayerList();
+                case "deleterank":
+                    return guild.getRankNames();
+                case "tp":
+                case "removemod":
+                case "addmod":
+                case "setowner":
+                case "kick":
+                    return guild.getMembers();
+            }
+        }
+        return Collections.emptyList();
+    }
 }
\ No newline at end of file
diff --git a/src/main/java/me/totalfreedom/tfguilds/command/HomeSubcommand.java b/src/main/java/me/totalfreedom/tfguilds/command/HomeSubcommand.java
index cc29894..7112ada 100644
--- a/src/main/java/me/totalfreedom/tfguilds/command/HomeSubcommand.java
+++ b/src/main/java/me/totalfreedom/tfguilds/command/HomeSubcommand.java
@@ -2,8 +2,6 @@ package me.totalfreedom.tfguilds.command;
 
 import me.totalfreedom.tfguilds.Common;
 import me.totalfreedom.tfguilds.guild.Guild;
-import me.totalfreedom.tfguilds.util.GUtil;
-import org.apache.commons.lang3.StringUtils;
 import org.bukkit.ChatColor;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
diff --git a/src/main/java/me/totalfreedom/tfguilds/command/MOTDSubcommand.java b/src/main/java/me/totalfreedom/tfguilds/command/MOTDSubcommand.java
index a0eae58..006bd3b 100644
--- a/src/main/java/me/totalfreedom/tfguilds/command/MOTDSubcommand.java
+++ b/src/main/java/me/totalfreedom/tfguilds/command/MOTDSubcommand.java
@@ -3,7 +3,7 @@ package me.totalfreedom.tfguilds.command;
 import me.totalfreedom.tfguilds.Common;
 import me.totalfreedom.tfguilds.guild.Guild;
 import me.totalfreedom.tfguilds.util.GUtil;
-import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang.StringUtils;
 import org.bukkit.ChatColor;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
diff --git a/src/main/java/me/totalfreedom/tfguilds/command/RemoveModSubcommand.java b/src/main/java/me/totalfreedom/tfguilds/command/RemoveModSubcommand.java
index ef9e7af..975b6b9 100644
--- a/src/main/java/me/totalfreedom/tfguilds/command/RemoveModSubcommand.java
+++ b/src/main/java/me/totalfreedom/tfguilds/command/RemoveModSubcommand.java
@@ -43,6 +43,12 @@ public class RemoveModSubcommand extends Common implements CommandExecutor
                 return true;
             }
 
+            if (guild.getModerators().contains(sender.getName()))
+            {
+                sender.sendMessage(ChatColor.RED + "You may not demote yourself.");
+                return true;
+            }
+
             if (!guild.hasMember(player.getName()))
             {
                 sender.sendMessage(ChatColor.RED + "This player is not in the specified guild!");
@@ -89,6 +95,12 @@ public class RemoveModSubcommand extends Common implements CommandExecutor
             return true;
         }
 
+        if (n == player)
+        {
+            sender.sendMessage(ChatColor.RED + "You may not demote yourself.");
+            return true;
+        }
+
         if (!guild.hasMember(n.getName()))
         {
             sender.sendMessage(ChatColor.RED + "This player is not in your guild!");
diff --git a/src/main/java/me/totalfreedom/tfguilds/command/SetOwnerSubcommand.java b/src/main/java/me/totalfreedom/tfguilds/command/SetOwnerSubcommand.java
index 02a1629..75439fd 100644
--- a/src/main/java/me/totalfreedom/tfguilds/command/SetOwnerSubcommand.java
+++ b/src/main/java/me/totalfreedom/tfguilds/command/SetOwnerSubcommand.java
@@ -43,6 +43,12 @@ public class SetOwnerSubcommand extends Common implements CommandExecutor
                 return true;
             }
 
+            if (guild.getOwner().contains(player.getName()))
+            {
+                sender.sendMessage(ChatColor.RED + "This player is already the owner of that guild!");
+                return true;
+            }
+
             if (!guild.hasMember(player.getName()))
             {
                 sender.sendMessage(ChatColor.RED + "This player is not in the specified guild!");
@@ -84,6 +90,12 @@ public class SetOwnerSubcommand extends Common implements CommandExecutor
             return true;
         }
 
+        if (n == player)
+        {
+            sender.sendMessage(ChatColor.RED + "You are already the owner of your guild.");
+            return true;
+        }
+
         if (!guild.hasMember(n.getName()))
         {
             sender.sendMessage(ChatColor.RED + "This player is not in your guild!");
diff --git a/src/main/java/me/totalfreedom/tfguilds/command/SetRankSubcommand.java b/src/main/java/me/totalfreedom/tfguilds/command/SetRankSubcommand.java
index 80db8f8..931e116 100644
--- a/src/main/java/me/totalfreedom/tfguilds/command/SetRankSubcommand.java
+++ b/src/main/java/me/totalfreedom/tfguilds/command/SetRankSubcommand.java
@@ -3,7 +3,7 @@ package me.totalfreedom.tfguilds.command;
 import me.totalfreedom.tfguilds.Common;
 import me.totalfreedom.tfguilds.guild.Guild;
 import me.totalfreedom.tfguilds.guild.GuildRank;
-import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang.StringUtils;
 import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
 import org.bukkit.command.Command;
diff --git a/src/main/java/me/totalfreedom/tfguilds/guild/Guild.java b/src/main/java/me/totalfreedom/tfguilds/guild/Guild.java
index 68fb34f..0108f8e 100644
--- a/src/main/java/me/totalfreedom/tfguilds/guild/Guild.java
+++ b/src/main/java/me/totalfreedom/tfguilds/guild/Guild.java
@@ -11,6 +11,7 @@ import org.apache.commons.lang.StringUtils;
 import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
 import org.bukkit.Location;
+import org.bukkit.command.CommandSender;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.entity.Player;
 
@@ -398,6 +399,20 @@ public class Guild
         return guild;
     }
 
+    public static Guild getGuild(CommandSender sender)
+    {
+        Guild guild = null;
+        for (String key : plugin.guilds.getKeys(false))
+        {
+            Guild kg = getGuild(key);
+            if (kg.getMembers().contains(sender.getName()))
+            {
+                guild = kg;
+            }
+        }
+        return guild;
+    }
+
     public static boolean guildExists(String identifier)
     {
         return plugin.guilds.contains(identifier);
diff --git a/src/main/java/me/totalfreedom/tfguilds/util/GUtil.java b/src/main/java/me/totalfreedom/tfguilds/util/GUtil.java
index 158682d..1f16a2a 100644
--- a/src/main/java/me/totalfreedom/tfguilds/util/GUtil.java
+++ b/src/main/java/me/totalfreedom/tfguilds/util/GUtil.java
@@ -1,6 +1,8 @@
 package me.totalfreedom.tfguilds.util;
 
+import java.util.ArrayList;
 import org.apache.commons.lang.StringUtils;
+import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
 
 import java.text.SimpleDateFormat;
@@ -9,6 +11,7 @@ import java.util.Date;
 import java.util.List;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import org.bukkit.entity.Player;
 
 public class GUtil
 {
@@ -45,4 +48,15 @@ public class GUtil
 
     public static List<String> BLACKLISTED_NAMES_AND_TAGS = Arrays.asList(
             "admin", "owner", "moderator", "developer", "console", "dev", "staff", "mod", "sra", "sta", "sa", "super admin", "telnet admin", "senior admin");
+
+    public static List<String> getPlayerList()
+    {
+        List<String> players = new ArrayList<>();
+        for (Player player : Bukkit.getOnlinePlayers())
+        {
+            players.add(player.getName());
+        }
+        return players;
+    }
+
 }
\ No newline at end of file