diff --git a/charter_members/models.py b/charter_members/models.py
index 61497a5..40edbaa 100644
--- a/charter_members/models.py
+++ b/charter_members/models.py
@@ -24,7 +24,7 @@ class Attorney(models.Model):
     address = models.CharField(max_length=255)
     biography = HTMLField(blank=True, null=True)
     call_to_bar = models.CharField(max_length=4, blank=True, null=True)
-    region = models.ForeignKey(Region, blank=True, null=True)
+    region = models.ForeignKey(Region, blank=True, null=True, on_delete=models.DO_NOTHING)
     email = models.CharField(max_length=255)
     first_name = models.CharField(max_length=100)
     front_page = models.BooleanField(default=False)
@@ -34,9 +34,9 @@ class Attorney(models.Model):
     lso = models.CharField(max_length=20, blank= True, null=True)
     order = models.IntegerField(blank=True, null=True, verbose_name='Order On Front Page')
     phone = models.CharField(max_length=10)
-    position = models.ForeignKey(Position, blank=True, null=True)
+    position = models.ForeignKey(Position, blank=True, null=True, on_delete=models.DO_NOTHING)
     website = models.CharField(max_length=255, blank=True, null=True)
-    user = models.ForeignKey(User, null=True, blank=True)
+    user = models.ForeignKey(User, null=True, blank=True, on_delete=models.DO_NOTHING)
 
     def phone_formatted(self):
         if self.phone is None or self.phone == '': return ''
diff --git a/forum/models.py b/forum/models.py
index d1c9970..7110ce5 100644
--- a/forum/models.py
+++ b/forum/models.py
@@ -12,10 +12,10 @@ class Thread(models.Model):
 
 
 class Post(models.Model):
-    creator = models.ForeignKey(User)
+    creator = models.ForeignKey(User, on_delete=models.DO_NOTHING)
     created = models.DateTimeField(auto_now_add=True)
     resolved = models.BooleanField(default=False)
-    thread = models.ForeignKey(Thread)
+    thread = models.ForeignKey(Thread, on_delete=models.DO_NOTHING)
     title = models.CharField(max_length=255)
     question = HTMLField()
 
@@ -24,9 +24,9 @@ class Post(models.Model):
 
 
 class Comment(models.Model):
-    post = models.ForeignKey(Post)
+    post = models.ForeignKey(Post, on_delete=models.DO_NOTHING)
     reply = HTMLField()
-    creator = models.ForeignKey(User)
+    creator = models.ForeignKey(User, on_delete=models.DO_NOTHING)
     created = models.DateTimeField(auto_now_add=True)
 
     def __str__(self):
diff --git a/main/models.py b/main/models.py
index a56bb89..33d161a 100644
--- a/main/models.py
+++ b/main/models.py
@@ -4,4 +4,4 @@ from django.contrib.auth.models import User
 
 class ResetToken(models.Model):
     token = models.CharField(max_length=8)
-    user = models.ForeignKey(User)
+    user = models.ForeignKey(User, on_delete=models.DO_NOTHING)
diff --git a/newsletters/models.py b/newsletters/models.py
index 540fec3..3bc2e4a 100644
--- a/newsletters/models.py
+++ b/newsletters/models.py
@@ -18,11 +18,11 @@ class Attachment(models.Model):
 class Newsletter(models.Model):
     body = HTMLField()
     created = models.DateTimeField(auto_now_add=True)
-    creator = models.ForeignKey(User)
+    creator = models.ForeignKey(User, on_delete=models.DO_NOTHING)
     publish = models.DateTimeField(default=timezone.now)
     sent = models.BooleanField(default=False)
     subject = models.CharField(max_length=255)
-    attachments = models.ManyToManyField(Attachment)
+    attachments = models.ManyToManyField(Attachment, blank=True, null=True)
 
     def __str__(self):
         return self.subject
diff --git a/newsroom/models.py b/newsroom/models.py
index fa3c307..36c8ec2 100644
--- a/newsroom/models.py
+++ b/newsroom/models.py
@@ -15,7 +15,7 @@ class Attachment(models.Model):
 class PressRelease(models.Model):
     title = models.CharField(max_length=255)
     created = models.DateTimeField(auto_now_add=True)
-    creator = models.ForeignKey(User)
+    creator = models.ForeignKey(User, on_delete=models.DO_NOTHING)
     attachments = models.ManyToManyField(Attachment)
 
     def __str__(self):