diff --git a/ClaimLink/ClaimLinkChatCommand.cs b/ClaimLink/ClaimLinkChatCommand.cs
index 951825b..d6a09bf 100644
--- a/ClaimLink/ClaimLinkChatCommand.cs
+++ b/ClaimLink/ClaimLinkChatCommand.cs
@@ -324,7 +324,55 @@ public static class ClaimLinkChatCommand
             return TextCommandResult.Success($"'{groupName}' is no longer a claim link.");
         });
     }
-    public static TextCommandResult TransferOwnership(TextCommandCallingArgs args) => TextCommandResult.Success("stub: claimlink transferownership");
+    public static TextCommandResult TransferOwnership(TextCommandCallingArgs args)
+    {
+        string groupName = (string)args[0];
+        IPlayer target = (IPlayer)args[1];
+        IPlayer player = args.Caller.Player;
+
+        TextCommandResult? err = TryResolveGroup(groupName, out PlayerGroup group);
+        if (err != null) return err;
+
+        err = TryResolveClaimLink(group, out _);
+        if (err != null) return err;
+
+        err = RequireOwner(player, group);
+        if (err != null) return err;
+
+        err = RequireMember(target, group);
+        if (err != null) return err;
+
+        if (target.PlayerUID == player.PlayerUID)
+            return TextCommandResult.Error($"You already own '{groupName}'.");
+
+        string playerUid = player.PlayerUID;
+        string targetName = target.PlayerName;
+        string targetUid = target.PlayerUID;
+
+        EnumPlayerGroupMemberShip oldOwnerLevel = player.GetGroup(group.Uid)!.Level;
+        EnumPlayerGroupMemberShip targetLevel = target.GetGroup(group.Uid)!.Level;
+
+        return Stage(playerUid, $"Ownership of '{groupName}' will be transferred to {targetName}.", () =>
+        {
+            string beforeOwnerUid = group.OwnerUID;
+
+            // TODO remove debug logging once transfer ownership persistence is confirmed tested
+            ClaimLinkModSystem.Logger.Notification(
+                $"claimlink: transferownership '{groupName}' (uid {group.Uid}) BEFORE OwnerUID={beforeOwnerUid} " +
+                $"(old owner {player.PlayerName}/{playerUid} level={oldOwnerLevel}, new owner {targetName}/{targetUid} level={targetLevel})");
+
+            group.OwnerUID = targetUid;
+
+            EnumPlayerGroupMemberShip afterOldOwnerLevel = player.GetGroup(group.Uid)!.Level;
+            EnumPlayerGroupMemberShip afterTargetLevel = target.GetGroup(group.Uid)!.Level;
+
+            ClaimLinkModSystem.Logger.Notification(
+                $"claimlink: transferownership '{groupName}' (uid {group.Uid}) AFTER OwnerUID={group.OwnerUID} " +
+                $"(old owner {player.PlayerName}/{playerUid} level={afterOldOwnerLevel}, new owner {targetName}/{targetUid} level={afterTargetLevel})");
+
+            return TextCommandResult.Success($"'{groupName}' is now owned by {targetName}.");
+        });
+    }
 
     public static TextCommandResult Info(TextCommandCallingArgs args)
     {
diff --git a/ClaimLink/ClaimLinkModSystem.cs b/ClaimLink/ClaimLinkModSystem.cs
index 33957bc..0a3bde5 100644
--- a/ClaimLink/ClaimLinkModSystem.cs
+++ b/ClaimLink/ClaimLinkModSystem.cs
@@ -29,6 +29,13 @@ public class ClaimLinkModSystem : ModSystem
         ClaimLinkChatCommand.Register(api);
 
         api.Event.PlayerDisconnect += ClaimLinkCommandListener.OnPlayerDisconnect;
+
+        // TODO remove debug logging once transfer ownership persistence is confirmed tested
+        foreach (ClaimLink link in Registry.All)
+        {
+            PlayerGroup group = Groups.PlayerGroupsById[link.GroupId];
+            Logger.Notification($"claimlink: startup state '{group.Name}' (uid {group.Uid}) OwnerUID={group.OwnerUID}");
+        }
     }
 
     public override void Dispose()