diff --git a/app/models/legal_document.rb b/app/models/legal_document.rb
index 98c1dad8d..5f9abffb7 100644
--- a/app/models/legal_document.rb
+++ b/app/models/legal_document.rb
@@ -32,18 +32,28 @@ class LegalDocument < ActiveRecord::Base
 
 
   def save_to_filesystem
-    loop do
-      rand = SecureRandom.random_number.to_s.last(4)
-      next if rand.to_i == 0 || rand.length < 4
 
-      dir = "#{ENV['legal_documents_dir']}/#{Time.zone.now.strftime('%Y/%m/%d')}"
-      FileUtils.mkdir_p(dir, mode: 0775)
-      self.path = "#{dir}/#{Time.zone.now.to_formatted_s(:number)}_#{rand}.#{document_type}"
-      break unless File.file?(path)
+    digest = Digest::SHA1.new
+    ld = LegalDocument.where(checksum: digest.update(Base64.decode64(body)))
+
+    if !ld
+      loop do
+        rand = SecureRandom.random_number.to_s.last(4)
+        next if rand.to_i == 0 || rand.length < 4
+
+        dir = "#{ENV['legal_documents_dir']}/#{Time.zone.now.strftime('%Y/%m/%d')}"
+        FileUtils.mkdir_p(dir, mode: 0775)
+        self.path = "#{dir}/#{Time.zone.now.to_formatted_s(:number)}_#{rand}.#{document_type}"
+        break unless File.file?(path)
+      end
+
+      File.open(path, 'wb') { |f| f.write(Base64.decode64(body)) } unless Rails.env.test?
+      self.path = path
+    else
+
+      self.path = ld.first.path
+
     end
-
-    File.open(path, 'wb') { |f| f.write(Base64.decode64(body)) } unless Rails.env.test?
-    self.path = path
   end
 
   def add_creator
diff --git a/db/migrate/20160629114503_add_hash_to_legal_doc.rb b/db/migrate/20160629114503_add_hash_to_legal_doc.rb
new file mode 100644
index 000000000..c79a5d13f
--- /dev/null
+++ b/db/migrate/20160629114503_add_hash_to_legal_doc.rb
@@ -0,0 +1,5 @@
+class AddHashToLegalDoc < ActiveRecord::Migration
+  def change
+    add_column :legal_documents, :checksum, :text
+  end
+end
diff --git a/lib/tasks/legal_doc.rake b/lib/tasks/legal_doc.rake
new file mode 100644
index 000000000..d1c8f003b
--- /dev/null
+++ b/lib/tasks/legal_doc.rake
@@ -0,0 +1,60 @@
+namespace :legal_doc do
+
+  desc 'Legal documents duplicates fix'
+  task all: :environment do
+    Rake::Task['legal_doc:generate_hash'].invoke
+    Rake::Task['legal_doc:remove_dublicates'].invoke
+  end
+
+  desc 'Generate hash'
+  task generate_hash: :environment do
+
+    start = Time.zone.now.to_f
+    puts '-----> Generating unique hash for legal documents'
+    count = 0
+
+    LegalDocument.find_each do |x|
+
+      if File.exist?(x.path) && x.body_hash.blank?
+        digest = Digest::SHA1.new
+        digest.update File.binread(x.path)
+        x.checksum = digest.hexdigest
+        x.save
+        count += 1
+      end
+
+    end
+    puts "-----> Hash generated for #{count} rows in #{(Time.zone.now.to_f - start).round(2)} seconds"
+  end
+
+  desc 'Remove duplicates'
+  task remove_dublicates: :environment do
+
+    start = Time.zone.now.to_f
+    puts '-----> Removing legal documents duplicates'
+    count = 0
+    modified = Array.new
+
+    LegalDocument.find_each do |x|
+      if File.exist?(x.path)
+
+        LegalDocument.where(checksum: x.checksum) do |y|
+
+          if x.id != y.id && !modified.include?(x.id)
+
+            File.delete(y.path) if File.exist?(y.path)
+            y.path = x.path
+            y.save
+            modified.push(y.id)
+            count += 1
+
+          end
+        end
+      end
+    end
+    puts "-----> Duplicates fixed for #{count} rows in #{(Time.zone.now.to_f - start).round(2)} seconds"
+
+  end
+
+end
+