diff --git a/Gemfile b/Gemfile
index 2c9b50865..54fa73a04 100644
--- a/Gemfile
+++ b/Gemfile
@@ -54,7 +54,7 @@ gem "bootstrap_form", "~> 5.3"
 # Devise Authentication
 gem "devise"
 
-gem 'devise_invitable', '~> 2.0.0'
+gem "devise_invitable", "~> 2.0.0"
 
 # Use Sass to process CSS
 gem "dartsass-rails"
diff --git a/config/routes.rb b/config/routes.rb
index 85b8b76eb..8347cfcd6 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -4,8 +4,8 @@
   devise_for :users, controllers: {
     registrations: "registrations",
     sessions: "users/sessions",
-    invitations: 'organizations/invitations'
-}
+    invitations: "organizations/invitations"
+  }
 
   resources :adoptable_pets, only: [:index, :show]
   resource :adopter_profile, except: :destroy, as: "profile"
diff --git a/db/migrate/20231009132343_devise_invitable_add_to_users.rb b/db/migrate/20231009132343_devise_invitable_add_to_users.rb
index e423c8038..540ee41c5 100644
--- a/db/migrate/20231009132343_devise_invitable_add_to_users.rb
+++ b/db/migrate/20231009132343_devise_invitable_add_to_users.rb
@@ -2,15 +2,15 @@ class DeviseInvitableAddToUsers < ActiveRecord::Migration[7.0]
   def up
     safety_assured do
       change_table :users do |t|
-        t.string     :invitation_token
-        t.datetime   :invitation_created_at
-        t.datetime   :invitation_sent_at
-        t.datetime   :invitation_accepted_at
-        t.integer    :invitation_limit
+        t.string :invitation_token
+        t.datetime :invitation_created_at
+        t.datetime :invitation_sent_at
+        t.datetime :invitation_accepted_at
+        t.integer :invitation_limit
         t.references :invited_by, polymorphic: true
-        t.integer    :invitations_count, default: 0
-        t.index      :invitation_token, unique: true # for invitable
-        t.index      :invited_by_id
+        t.integer :invitations_count, default: 0
+        t.index :invitation_token, unique: true # for invitable
+        t.index :invited_by_id
       end
     end
   end
diff --git a/test/factories.rb b/test/factories.rb
index 3fd76bc5e..cd4eaba93 100644
--- a/test/factories.rb
+++ b/test/factories.rb
@@ -154,6 +154,12 @@
     trait :unverified do
       verified { false }
     end
+
+    trait :admin do
+      after :create do |staff_account|
+        staff_account.add_role(:admin, staff_account.organization)
+      end
+    end
   end
 
   factory :user do
@@ -168,6 +174,10 @@
       staff_account
     end
 
+    trait :staff_admin do
+      association(:staff_account, :admin)
+    end
+
     trait :unverified_staff do
       staff_account { build(:staff_account, :unverified) }
     end
diff --git a/test/integration/organizations/invite_staff_test.rb b/test/integration/organizations/invite_staff_test.rb
new file mode 100644
index 000000000..0b12cacff
--- /dev/null
+++ b/test/integration/organizations/invite_staff_test.rb
@@ -0,0 +1,45 @@
+require "test_helper"
+
+class Organizations::InviteStaffTest < ActionDispatch::IntegrationTest
+  setup do
+    @user_invitation_params = {
+      user: {
+        first_name: "John",
+        last_name: "Doe",
+        email: "john@example.com",
+        staff_account_attributes: {roles: "admin"}
+      }
+    }
+  end
+
+  test "staff admin can invite other staffs to the organization" do
+    sign_in create(:user, :staff_admin)
+
+    post(
+      user_invitation_path,
+      params: @user_invitation_params
+    )
+
+    assert_response :redirect
+
+    invited_user = User.find_by(email: "john@example.com")
+
+    assert invited_user.invited_to_sign_up?
+    assert invited_user.staff_account.has_role?(:admin)
+    assert invited_user.staff_account.verified?
+
+    assert_equal ActionMailer::Base.deliveries.count, 1
+  end
+
+  test "staff admin can not invite existing user to the organization" do
+    sign_in create(:user, :staff_admin)
+    _existing_user = create(:user, email: "john@example.com")
+
+    post(
+      user_invitation_path,
+      params: @user_invitation_params
+    )
+
+    assert_response :unprocessable_entity
+  end
+end