diff --git a/src/resources/objects/creature/CreatureMessageBuilder.java b/src/resources/objects/creature/CreatureMessageBuilder.java
index d7608031..7b22fd0d 100644
--- a/src/resources/objects/creature/CreatureMessageBuilder.java
+++ b/src/resources/objects/creature/CreatureMessageBuilder.java
@@ -737,6 +737,22 @@ public class CreatureMessageBuilder extends ObjectMessageBuilder {
 		return buffer;
 
 	}
+	
+	public IoBuffer buildGroupInviteDelta(long inviteSenderId, long inviteCounter, String leaderName) {
+		
+		IoBuffer buffer = bufferPool.allocate(18 + leaderName.length(), false).order(ByteOrder.LITTLE_ENDIAN);
+		
+		buffer.putLong(inviteSenderId);
+		buffer.put(getAsciiString(leaderName));
+		buffer.putLong(inviteCounter);
+		
+		int size = buffer.position();
+		buffer.flip();
+		buffer = createDelta("CREO", (byte) 6, (short) 1, (short) 0x0E, buffer, size + 4);
+		
+		return buffer;
+
+	}
 
 
 	
diff --git a/src/resources/objects/creature/CreatureObject.java b/src/resources/objects/creature/CreatureObject.java
index 2768623f..01fe8e79 100644
--- a/src/resources/objects/creature/CreatureObject.java
+++ b/src/resources/objects/creature/CreatureObject.java
@@ -936,6 +936,15 @@ public class CreatureObject extends TangibleObject implements IPersistent {
 		}
 		return null;
 	}
+	
+	public void updateGroupInviteInfo() {
+		
+		if(getClient() == null || getClient().getSession() == null)
+			return;
+		
+		getClient().getSession().write(messageBuilder.buildGroupInviteDelta(getInviteSenderId(), getInviteCounter(), getInviteSenderName()));
+		
+	}
 
 
 }
diff --git a/src/resources/objects/group/GroupObject.java b/src/resources/objects/group/GroupObject.java
index 017fc482..e689ddc0 100644
--- a/src/resources/objects/group/GroupObject.java
+++ b/src/resources/objects/group/GroupObject.java
@@ -117,12 +117,7 @@ public class GroupObject extends SWGObject {
 		memberList.add(member);
 		
 		setMemberListUpdateCounter(getMemberListUpdateCounter() + 1);
-		IoBuffer packet = messageBuilder.buildAddMemberDelta(member);
-		synchronized(memberList.getMutex()) {
-			for(SWGObject obj : memberList.get()) {
-				obj.getClient().getSession().write(packet);
-			}
-		}
+		notifyObservers(messageBuilder.buildAddMemberDelta(member), false);
 		
 	}
 	
@@ -132,13 +127,8 @@ public class GroupObject extends SWGObject {
 			return;
 		
 		setMemberListUpdateCounter(getMemberListUpdateCounter() + 1);
-		IoBuffer packet = messageBuilder.buildRemoveMemberDelta(member);
-		synchronized(memberList.getMutex()) {
-			for(SWGObject obj : memberList.get()) {
-				obj.getClient().getSession().write(packet);
-			}
-		}
-		
+		notifyObservers(messageBuilder.buildRemoveMemberDelta(member), false);
+				
 		memberList.remove(member);
 		
 	}
diff --git a/src/services/GroupService.java b/src/services/GroupService.java
index 3a1ce2d6..f572a732 100644
--- a/src/services/GroupService.java
+++ b/src/services/GroupService.java
@@ -24,9 +24,11 @@ package services;
 import java.util.Map;
 
 import resources.objects.creature.CreatureObject;
+import resources.objects.group.GroupObject;
 
 import main.NGECore;
 
+import engine.clients.Client;
 import engine.resources.objects.SWGObject;
 import engine.resources.service.INetworkDispatch;
 import engine.resources.service.INetworkRemoteEvent;
@@ -40,6 +42,7 @@ public class GroupService implements INetworkDispatch {
 		core.commandService.registerCommand("invite");
 		core.commandService.registerCommand("join");
 		core.commandService.registerCommand("disband");
+		core.commandService.registerCommand("decline");
 	}
 
 	@Override
@@ -52,10 +55,79 @@ public class GroupService implements INetworkDispatch {
 		
 	}
 	
-	public void handleGroupInvite(CreatureObject inviter, CreatureObject invited) {
+	public void handleGroupInvite(CreatureObject leader, CreatureObject member) {
+		
+		Client leaderClient = leader.getClient();
+		Client memberClient = member.getClient();
+		
+		if(leaderClient == null || memberClient == null)
+			return;
+		
+		long leaderGroupId = leader.getGroupId();
+		long memberGroupId = member.getGroupId();
+		
+		if(leader == member) {
+			leader.sendSystemMessage("@group:invite_no_target_self", (byte) 0);
+			return;
+		}
+		
+		if(memberGroupId != 0) {
+			leader.sendSystemMessage(member.getCustomName() + " is already in a group.", (byte) 0);
+			return;
+		}
+		
+		
+		if(leaderGroupId != 0) {
+			
+			GroupObject group = (GroupObject) core.objectService.getObject(leaderGroupId);
+			
+			if(group.getGroupLeader() != leader) {
+				leader.sendSystemMessage("@group:must_be_leader", (byte) 0);
+				return;
+			}
+			
+			if(group.getMemberList().size() >= 8) {
+				leader.sendSystemMessage("@group:full", (byte) 0);
+				return;
+			}
+			
+		}
+		
+		if(member.getInviteSenderId() != 0 && member.getInviteSenderId() != leader.getObjectID()) {
+			leader.sendSystemMessage(member.getCustomName() + " is considering joining another group.", (byte) 0);
+			return;
+		}
+		
+		if(member.getInviteSenderId() != 0 && member.getInviteSenderId() == leader.getObjectID()) {
+			leader.sendSystemMessage(member.getCustomName() + " has already been invited to join your group.", (byte) 0);
+			return;
+		}
+
+		leader.sendSystemMessage("You invite " + member.getCustomName() + " to join the group.", (byte) 0);
+		member.setInviteCounter(member.getInviteCounter() + 1);
+		member.setInviteSenderId(member.getObjectId());
+		member.setInviteSenderName(leader.getCustomName());
+		
+		member.updateGroupInviteInfo();
 		
 	}
 	
+	public void handleGroupDecline(CreatureObject invited) {
+		
+		CreatureObject leader = (CreatureObject) core.objectService.getObject(invited.getInviteSenderId());
+		
+		invited.setInviteCounter(invited.getInviteCounter() + 1);
+		invited.setInviteSenderId(0);
+		invited.setInviteSenderName("");
+		
+		invited.sendSystemMessage("You decline to join " + leader.getCustomName() + "'s group.", (byte) 0);
+		invited.updateGroupInviteInfo();
+		
+		leader.sendSystemMessage(invited.getCustomName() + " declines to join your group.", (byte) 0);
+		
+	}
+
+	
 	
 
 }