diff --git a/Habitica/src/main/java/com/habitrpg/android/habitica/data/local/implementation/RealmTaskLocalRepository.java b/Habitica/src/main/java/com/habitrpg/android/habitica/data/local/implementation/RealmTaskLocalRepository.java
index 346731a84..d099f630e 100644
--- a/Habitica/src/main/java/com/habitrpg/android/habitica/data/local/implementation/RealmTaskLocalRepository.java
+++ b/Habitica/src/main/java/com/habitrpg/android/habitica/data/local/implementation/RealmTaskLocalRepository.java
@@ -51,6 +51,22 @@ public class RealmTaskLocalRepository extends RealmBaseLocalRepository implement
             }
             if (userId != null) {
                 removeOldTasks(realm1, userId, sortedTasks);
+
+                List<ChecklistItem> allChecklistItems = new ArrayList<>();
+                for (Task t : sortedTasks) {
+                    if (t.checklist != null) {
+                        allChecklistItems.addAll(t.checklist);
+                    }
+                }
+                removeOldChecklists(realm1, allChecklistItems);
+
+                List<RemindersItem> allReminders = new ArrayList<>();
+                for (Task t : sortedTasks) {
+                    if (t.getReminders() != null) {
+                        allReminders.addAll(t.getReminders());
+                    }
+                }
+                removeOldReminders(realm1, allReminders);
             }
 
             realm1.insertOrUpdate(sortedTasks);
@@ -77,8 +93,8 @@ public class RealmTaskLocalRepository extends RealmBaseLocalRepository implement
         realm.executeTransaction(realm1 -> realm1.insertOrUpdate(task));
     }
 
-    private void removeOldTasks(Realm realm1, String userID, List<Task> onlineTaskList) {
-        RealmResults<Task> localTasks = realm1.where(Task.class).equalTo("userId", userID).findAll();
+    private void removeOldTasks(Realm realm, String userID, List<Task> onlineTaskList) {
+        RealmResults<Task> localTasks = realm.where(Task.class).equalTo("userId", userID).findAll();
         for (Task localTask : localTasks) {
             if (!onlineTaskList.contains(localTask)) {
                 for (ChecklistItem item : localTask.checklist) {
@@ -92,7 +108,23 @@ public class RealmTaskLocalRepository extends RealmBaseLocalRepository implement
         }
     }
 
+    private void removeOldChecklists(Realm realm, List<ChecklistItem> onlineItems) {
+        RealmResults<ChecklistItem> localItems = realm.where(ChecklistItem.class).findAll();
+        for (ChecklistItem localItem : localItems) {
+            if (!onlineItems.contains(localItem)) {
+                localItem.deleteFromRealm();
+            }
+        }
+    }
 
+    private void removeOldReminders(Realm realm, List<RemindersItem> onlineReminders) {
+        RealmResults<RemindersItem> localReminders = realm.where(RemindersItem.class).findAll();
+        for (RemindersItem localItem : localReminders) {
+            if (!onlineReminders.contains(localItem)) {
+                localItem.deleteFromRealm();
+            }
+        }
+    }
     @Override
     public void deleteTask(String taskID) {
         Task task = realm.where(Task.class).equalTo("id", taskID).findFirstAsync();
@@ -100,7 +132,6 @@ public class RealmTaskLocalRepository extends RealmBaseLocalRepository implement
     }
 
     @Override
-
     public Observable<Task> getTask(String taskId) {
         return realm.where(Task.class).equalTo("id", taskId).findFirstAsync().asObservable()
                 .filter(realmObject -> realmObject.isLoaded())
diff --git a/Habitica/src/main/java/com/habitrpg/android/habitica/data/local/implementation/RealmUserLocalRepository.java b/Habitica/src/main/java/com/habitrpg/android/habitica/data/local/implementation/RealmUserLocalRepository.java
index 985f36792..24230c387 100644
--- a/Habitica/src/main/java/com/habitrpg/android/habitica/data/local/implementation/RealmUserLocalRepository.java
+++ b/Habitica/src/main/java/com/habitrpg/android/habitica/data/local/implementation/RealmUserLocalRepository.java
@@ -2,6 +2,7 @@ package com.habitrpg.android.habitica.data.local.implementation;
 
 import com.habitrpg.android.habitica.data.local.UserLocalRepository;
 import com.habitrpg.android.habitica.models.Skill;
+import com.habitrpg.android.habitica.models.Tag;
 import com.habitrpg.android.habitica.models.TutorialStep;
 import com.habitrpg.android.habitica.models.user.SpecialItems;
 import com.habitrpg.android.habitica.models.user.User;
@@ -32,7 +33,23 @@ public class RealmUserLocalRepository extends RealmBaseLocalRepository implement
 
     @Override
     public void saveUser(User user) {
-        realm.executeTransaction(realm1 -> realm1.insertOrUpdate(user));
+        realm.executeTransaction(realm1 -> {
+            realm1.insertOrUpdate(user);
+
+            if (user.getTags() != null) {
+                removeOldTags(user.getId(), user.getTags());
+            }
+        });
+    }
+
+    private void removeOldTags(String userId, List<Tag> onlineTags) {
+        RealmResults<Tag> tags = realm.where(Tag.class).equalTo("userId", userId).findAll();
+
+        for (Tag tag : tags) {
+            if (!onlineTags.contains(tag)) {
+                tag.deleteFromRealm();
+            }
+        }
     }
 
     @Override
diff --git a/Habitica/src/main/java/com/habitrpg/android/habitica/models/Tag.java b/Habitica/src/main/java/com/habitrpg/android/habitica/models/Tag.java
index 618094a77..4e0c59e01 100644
--- a/Habitica/src/main/java/com/habitrpg/android/habitica/models/Tag.java
+++ b/Habitica/src/main/java/com/habitrpg/android/habitica/models/Tag.java
@@ -19,7 +19,7 @@ public class Tag extends RealmObject {
     @PrimaryKey
     public String id;
 
-    public User user;
+    public String userId;
     public RealmList<Task> tasks;
     String name;
     boolean challenge;
diff --git a/Habitica/src/main/java/com/habitrpg/android/habitica/models/tasks/ChecklistItem.java b/Habitica/src/main/java/com/habitrpg/android/habitica/models/tasks/ChecklistItem.java
index c2593ea3f..0d80ef320 100644
--- a/Habitica/src/main/java/com/habitrpg/android/habitica/models/tasks/ChecklistItem.java
+++ b/Habitica/src/main/java/com/habitrpg/android/habitica/models/tasks/ChecklistItem.java
@@ -78,4 +78,12 @@ public class ChecklistItem extends RealmObject {
     public void setTask(Task task) {
         this.task = task;
     }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj.getClass().equals(ChecklistItem.class)) {
+            return this.id.equals(((ChecklistItem)obj).id);
+        }
+        return super.equals(obj);
+    }
 }
diff --git a/Habitica/src/main/java/com/habitrpg/android/habitica/models/tasks/RemindersItem.java b/Habitica/src/main/java/com/habitrpg/android/habitica/models/tasks/RemindersItem.java
index 1e960a0e8..549383263 100644
--- a/Habitica/src/main/java/com/habitrpg/android/habitica/models/tasks/RemindersItem.java
+++ b/Habitica/src/main/java/com/habitrpg/android/habitica/models/tasks/RemindersItem.java
@@ -66,4 +66,12 @@ public class RemindersItem extends RealmObject {
     public void setType(String type) {
         this.type = type;
     }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj.getClass().equals(RemindersItem.class)) {
+            return this.id.equals(((RemindersItem)obj).id);
+        }
+        return super.equals(obj);
+    }
 }
diff --git a/Habitica/src/main/java/com/habitrpg/android/habitica/ui/fragments/social/party/PartyFragment.java b/Habitica/src/main/java/com/habitrpg/android/habitica/ui/fragments/social/party/PartyFragment.java
index e90359ee3..931e276f7 100644
--- a/Habitica/src/main/java/com/habitrpg/android/habitica/ui/fragments/social/party/PartyFragment.java
+++ b/Habitica/src/main/java/com/habitrpg/android/habitica/ui/fragments/social/party/PartyFragment.java
@@ -141,7 +141,6 @@ public class PartyFragment extends BaseMainFragment {
                 }
             }, RxErrorHandler.handleEmptyError());
         }
-
     }
 
     @Override
diff --git a/Habitica/src/main/java/com/habitrpg/android/habitica/utils/QuestDeserializer.java b/Habitica/src/main/java/com/habitrpg/android/habitica/utils/QuestDeserializer.java
index 19a225e16..b90d54589 100644
--- a/Habitica/src/main/java/com/habitrpg/android/habitica/utils/QuestDeserializer.java
+++ b/Habitica/src/main/java/com/habitrpg/android/habitica/utils/QuestDeserializer.java
@@ -20,7 +20,11 @@ public class QuestDeserializer implements JsonDeserializer<Quest> {
         JsonObject obj = json.getAsJsonObject();
         Quest quest = new Quest();
 
-        quest.key = obj.get("key").getAsString();
+        if (obj.has("key") && !obj.get("key").isJsonNull()) {
+            quest.key = obj.get("key").getAsString();
+        } else {
+            return quest;
+        }
         if (obj.has("active")) {
             quest.active = obj.get("active").getAsBoolean();
         }
@@ -32,7 +36,7 @@ public class QuestDeserializer implements JsonDeserializer<Quest> {
         }
         if (obj.has("progress")) {
             QuestProgress progress = new QuestProgress();
-            progress.key = obj.get("key").getAsString();
+            progress.key = quest.getKey();
             JsonObject progressObj = obj.get("progress").getAsJsonObject();
             if (progressObj.has("hp")) {
                 progress.hp = progressObj.get("hp").getAsInt();
diff --git a/Habitica/src/main/java/com/habitrpg/android/habitica/utils/UserDeserializer.java b/Habitica/src/main/java/com/habitrpg/android/habitica/utils/UserDeserializer.java
index c734fe82b..02c4800fd 100644
--- a/Habitica/src/main/java/com/habitrpg/android/habitica/utils/UserDeserializer.java
+++ b/Habitica/src/main/java/com/habitrpg/android/habitica/utils/UserDeserializer.java
@@ -32,6 +32,10 @@ public class UserDeserializer implements JsonDeserializer<User> {
     public User deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
         User user = new User();
         JsonObject obj = json.getAsJsonObject();
+        if (obj.has("_id")) {
+            user.setId(obj.get("_id").getAsString());
+        }
+
         if (obj.has("balance")) {
             user.setBalance(obj.get("balance").getAsDouble());
         }
@@ -68,6 +72,9 @@ public class UserDeserializer implements JsonDeserializer<User> {
         if (obj.has("tags")) {
             user.setTags(context.deserialize(obj.get("tags"), new TypeToken<RealmList<Tag>>() {
             }.getType()));
+            for (Tag tag : user.getTags()) {
+                tag.userId = user.getId();
+            }
         }
         if (obj.has("tasksOrder")) {
             user.setTasksOrder(context.deserialize(obj.get("tasksOrder"), TasksOrder.class));
@@ -85,10 +92,6 @@ public class UserDeserializer implements JsonDeserializer<User> {
             }
         }
 
-        if (obj.has("_id")) {
-            user.setId(obj.get("_id").getAsString());
-        }
-
         return user;
     }
 }
\ No newline at end of file