diff --git a/app/interactors/accept_as_supporter.rb b/app/interactors/accept_as_supporter.rb
index 3e1369e..b93cbeb 100644
--- a/app/interactors/accept_as_supporter.rb
+++ b/app/interactors/accept_as_supporter.rb
@@ -4,7 +4,7 @@ class AcceptAsSupporter
   include Interactor
 
   around :wrap_into_transaction
-
+  before :validate_account
   after :reload_records
 
   def call
@@ -27,4 +27,9 @@ private
   def reload_records
     context.person.reload
   end
+
+  def validate_account
+    context.fail! unless context.initiator_account.can_initiate_relationship? \
+      context.regional_office
+  end
 end
diff --git a/spec/interactors/accept_as_supporter_spec.rb b/spec/interactors/accept_as_supporter_spec.rb
index 5a790bc..728ca40 100644
--- a/spec/interactors/accept_as_supporter_spec.rb
+++ b/spec/interactors/accept_as_supporter_spec.rb
@@ -36,4 +36,150 @@ RSpec.describe AcceptAsSupporter do
       regional_secretary_flag: nil,
     )
   end
+
+  context 'when initiator is a federal secretary' do
+    let!(:initiator_account) { create :personal_account }
+
+    before do
+      create :federal_secretary_relationship, person: initiator_account.person
+    end
+
+    specify { expect(subject).to be_success }
+
+    specify do
+      expect { subject }.to change(Relationship, :count).by(1)
+    end
+
+    specify do
+      expect { subject }.to \
+        change(person.all_relationships, :count).from(0).to(1)
+    end
+
+    specify do
+      expect { subject }.to change(person, :current_relationship).from(nil)
+
+      expect(person.current_relationship).to have_attributes(
+        regional_office: regional_office,
+        initiator_account: initiator_account,
+        from_date: Time.zone.today,
+        status: 'supporter',
+        role: nil,
+        federal_secretary_flag: nil,
+        regional_secretary_flag: nil,
+      )
+    end
+  end
+
+  context 'when initiator is a regional secretary with the same region' do
+    let!(:initiator_account) { create :personal_account }
+
+    before do
+      create :regional_secretary_relationship,
+             person: initiator_account.person,
+             regional_office: regional_office
+    end
+
+    specify { expect(subject).to be_success }
+
+    specify do
+      expect { subject }.to change(Relationship, :count).by(1)
+    end
+
+    specify do
+      expect { subject }.to \
+        change(person.all_relationships, :count).from(0).to(1)
+    end
+
+    specify do
+      expect { subject }.to change(person, :current_relationship).from(nil)
+
+      expect(person.current_relationship).to have_attributes(
+        regional_office: regional_office,
+        initiator_account: initiator_account,
+        from_date: Time.zone.today,
+        status: 'supporter',
+        role: nil,
+        federal_secretary_flag: nil,
+        regional_secretary_flag: nil,
+      )
+    end
+  end
+
+  context 'when initiator is a regional secretary with different region' do
+    let!(:initiator_account) { create :personal_account }
+
+    before do
+      create :regional_secretary_relationship, person: initiator_account.person
+    end
+
+    specify { expect(subject).to be_failure }
+
+    specify do
+      expect { subject }.not_to change(Relationship, :count)
+    end
+  end
+
+  context 'when initiator is a federal manager' do
+    let!(:initiator_account) { create :personal_account }
+
+    before do
+      create :federal_manager_relationship,
+             person: initiator_account.person,
+             regional_office: regional_office
+    end
+
+    specify { expect(subject).to be_failure }
+
+    specify do
+      expect { subject }.not_to change(Relationship, :count)
+    end
+  end
+
+  context 'when initiator is a federal supervisor' do
+    let!(:initiator_account) { create :personal_account }
+
+    before do
+      create :federal_supervisor_relationship,
+             person: initiator_account.person,
+             regional_office: regional_office
+    end
+
+    specify { expect(subject).to be_failure }
+
+    specify do
+      expect { subject }.not_to change(Relationship, :count)
+    end
+  end
+
+  context 'when initiator is a regional manager' do
+    let!(:initiator_account) { create :personal_account }
+
+    before do
+      create :regional_manager_relationship,
+             person: initiator_account.person,
+             regional_office: regional_office
+    end
+
+    specify { expect(subject).to be_failure }
+
+    specify do
+      expect { subject }.not_to change(Relationship, :count)
+    end
+  end
+
+  context 'when initiator is a regional supervisor' do
+    let!(:initiator_account) { create :personal_account }
+
+    before do
+      create :regional_supervisor_relationship,
+             person: initiator_account.person,
+             regional_office: regional_office
+    end
+
+    specify { expect(subject).to be_failure }
+
+    specify do
+      expect { subject }.not_to change(Relationship, :count)
+    end
+  end
 end