diff --git a/golem_family_membership/wizard/golem_membership_invoice.py b/golem_family_membership/wizard/golem_membership_invoice.py
new file mode 100644
index 0000000..6d46315
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+++ b/golem_family_membership/wizard/golem_membership_invoice.py
@@ -0,0 +1,65 @@
+# -*- coding: utf-8 -*-
+
+#    Copyright 2018 Youssef El Ouahby <youssef@yaltik.com>
+#    Copyright 2018 Fabien Bourgeois <fabien@yaltik.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+""" GOLEM Membership Invoice Adaptations"""
+
+from odoo import models, fields, api, _
+
+class GolemMembershipInvoice(models.TransientModel):
+    """ GOLEM Membership Invoice adaptations """
+    _inherit = 'golem.membership.invoice'
+
+    family_id = fields.Many2one('golem.family')
+    members_ids = fields.Many2many('res.partner')
+    on_the_name_of = fields.Many2one('res.partner', domain="[('id', '=', members_ids[0][2])]")
+
+    @api.onchange('family_id')
+    def onchange_family_id(self):
+        """ fill members_ids """
+        for record in self:
+            for member in record.family_id.member_ids:
+                record.members_ids += member
+
+    @api.multi
+    def membership_family_invoice(self):
+        """ Create family membership """
+        self.ensure_one()
+        record = self[0]
+        datas = {'membership_product_id': self.product_id.id,
+                 'amount': self.member_price}
+        invoice_list = record.on_the_name_of.create_membership_invoice(datas=datas)
+        datas = {'membership_product_id': self.product_id.id,
+                 'amount': 0}
+        gen = (member for member in record.members_ids if member != record.on_the_name_of)
+        for member in gen:
+            id = member.create_membership_invoice(datas=datas)
+            self.env['account.invoice'].browse(id).action_invoice_open()
+            invoice_list += id
+
+        search_view_id = self.env.ref('account.view_account_invoice_filter')
+        form_view_id = self.env.ref('account.invoice_form')
+        return {
+            'domain': [('id', 'in', invoice_list)],
+            'name': 'Membership Invoices',
+            'view_type': 'form',
+            'view_mode': 'tree,form',
+            'res_model': 'account.invoice',
+            'type': 'ir.actions.act_window',
+            'views': [(False, 'tree'), (form_view_id.id, 'form')],
+            'search_view_id': search_view_id.id
+        }