diff --git a/app/controllers/concerns/create_avis_concern.rb b/app/controllers/concerns/create_avis_concern.rb
index c086ee726..d87a86a29 100644
--- a/app/controllers/concerns/create_avis_concern.rb
+++ b/app/controllers/concerns/create_avis_concern.rb
@@ -5,22 +5,39 @@ module CreateAvisConcern
 
   def create_avis_from_params(dossier, confidentiel = false)
     confidentiel ||= create_avis_params[:confidentiel]
-    avis = Avis.new(create_avis_params.merge(claimant: current_gestionnaire, dossier: dossier, confidentiel: confidentiel))
+    emails = create_avis_params[:emails].split(',').map(&:strip)
 
-    if avis.save
-      flash.notice = "Une demande d'avis a été envoyée à #{avis.email_to_display}"
+    create_results = Avis.create(
+      emails.map do |email|
+        {
+          email: email,
+          introduction: create_avis_params[:introduction],
+          claimant: current_gestionnaire,
+          dossier: dossier,
+          confidentiel: confidentiel
+        }
+      end
+    )
+
+    if create_results.all?(&:persisted?)
+      sent_emails_addresses = create_results.map(&:email_to_display).join(", ")
+      flash.notice = "Une demande d'avis a été envoyée à #{sent_emails_addresses}"
 
       nil
     else
-      flash.now.alert = @avis.errors.full_messages
+      flash.now.alert = create_results
+        .map(&:errors)
+        .reject(&:empty?)
+        .map(&:full_messages)
+        .flatten
 
       # When an error occurs, return the avis back to the controller
       # to give the user a chance to correct and resubmit
-      avis
+      Avis.new(create_avis_params)
     end
   end
 
   def create_avis_params
-    params.require(:avis).permit(:email, :introduction, :confidentiel)
+    params.require(:avis).permit(:emails, :introduction, :confidentiel)
   end
 end
diff --git a/app/models/avis.rb b/app/models/avis.rb
index 024323fea..e755f946b 100644
--- a/app/models/avis.rb
+++ b/app/models/avis.rb
@@ -19,6 +19,10 @@ class Avis < ApplicationRecord
   scope :by_latest, -> { order(updated_at: :desc) }
   scope :updated_since?, -> (date) { where('avis.updated_at > ?', date) }
 
+  # The form allows subtmitting avis requests to several emails at once,
+  # hence this virtual attribute.
+  attr_accessor :emails
+
   def email_to_display
     gestionnaire&.email || email
   end
diff --git a/app/views/new_gestionnaire/shared/avis/_form.html.haml b/app/views/new_gestionnaire/shared/avis/_form.html.haml
index 29aefebfa..71c7442f4 100644
--- a/app/views/new_gestionnaire/shared/avis/_form.html.haml
+++ b/app/views/new_gestionnaire/shared/avis/_form.html.haml
@@ -1,9 +1,9 @@
 %section.ask-avis
-  %h1.tab-title Inviter une personne à donner son avis
-  %p.avis-notice L'invité pourra consulter, donner un avis sur le dossier et contribuer au fil de messagerie, mais il ne pourra le modifier.
+  %h1.tab-title Inviter des personnes à donner leur avis
+  %p.avis-notice Les invités pourront consulter, donner un avis sur le dossier et contribuer au fil de messagerie, mais ils ne pourront pas le modifier.
 
   = form_for avis, url: url, html: { class: 'form' } do |f|
-    = f.email_field :email, placeholder: 'Adresse email', required: true
+    = f.text_field :emails, placeholder: 'Adresses email, séparées par des virgules', required: true
     = f.text_area :introduction, rows: 3, value: avis.introduction || 'Bonjour, merci de me donner votre avis sur ce dossier.', required: true
     .flex.justify-between.align-baseline
       - if must_be_confidentiel
diff --git a/spec/controllers/new_gestionnaire/avis_controller_spec.rb b/spec/controllers/new_gestionnaire/avis_controller_spec.rb
index 08c0f980c..d73c8e686 100644
--- a/spec/controllers/new_gestionnaire/avis_controller_spec.rb
+++ b/spec/controllers/new_gestionnaire/avis_controller_spec.rb
@@ -105,7 +105,7 @@ describe NewGestionnaire::AvisController, type: :controller do
       let(:created_avis) { Avis.last }
 
       before do
-        post :create_avis, params: { id: previous_avis.id, avis: { email: email, introduction: intro, confidentiel: asked_confidentiel } }
+        post :create_avis, params: { id: previous_avis.id, avis: { emails: email, introduction: intro, confidentiel: asked_confidentiel } }
       end
 
       context 'when an invalid email' do
diff --git a/spec/controllers/new_gestionnaire/dossiers_controller_spec.rb b/spec/controllers/new_gestionnaire/dossiers_controller_spec.rb
index bd074d314..f076b87fe 100644
--- a/spec/controllers/new_gestionnaire/dossiers_controller_spec.rb
+++ b/spec/controllers/new_gestionnaire/dossiers_controller_spec.rb
@@ -313,7 +313,7 @@ describe NewGestionnaire::DossiersController, type: :controller do
       post :create_avis, params: {
         procedure_id: procedure.id,
         dossier_id: dossier.id,
-        avis: { email: email, introduction: 'intro', confidentiel: true }
+        avis: { emails: email, introduction: 'intro', confidentiel: true }
       }
     end
 
diff --git a/spec/features/new_gestionnaire/gestionnaire_spec.rb b/spec/features/new_gestionnaire/gestionnaire_spec.rb
index 95cc0896d..7c1b95f2c 100644
--- a/spec/features/new_gestionnaire/gestionnaire_spec.rb
+++ b/spec/features/new_gestionnaire/gestionnaire_spec.rb
@@ -192,7 +192,7 @@ feature 'The gestionnaire part' do
   end
 
   def ask_confidential_avis(to, introduction)
-    fill_in 'avis_email', with: to
+    fill_in 'avis_emails', with: to
     fill_in 'avis_introduction', with: introduction
     select 'confidentiel', from: 'avis_confidentiel'
     click_on 'Demander un avis'