diff --git a/.rubocop.yml b/.rubocop.yml
new file mode 100644
index 0000000..e432d92
--- /dev/null
+++ b/.rubocop.yml
@@ -0,0 +1,73 @@
+AllCops:
+  TargetRubyVersion: 2.5
+  Include:
+    - '**/Rakefile'
+    - '**/config.ru'
+  Exclude:
+    - 'lib/tasks/auto_annotate_models.rake'
+    - 'db/**/*'
+    - 'config/**/*'
+    - 'script/**/*'
+    - 'bin/**/*'
+    - !ruby/regexp /old_and_unused\.rb$/
+    - 'app/admin/*'
+    - 'tmp/*'
+    - Gemfile
+
+Documentation:
+  Enabled: false
+
+FrozenStringLiteralComment:
+  Enabled: false
+
+ClassAndModuleChildren:
+  Enabled: false
+
+Metrics/BlockLength:
+  Enabled: true
+  Exclude:
+    - lib/tasks/**/*
+
+
+AsciiComments:
+  Enabled: false
+
+AlignParameters:
+  Enabled: false
+
+Layout/EndAlignment:
+  Enabled: true
+  EnforcedStyleAlignWith: variable
+
+Metrics/LineLength:
+  Max: 100
+
+Style/BlockDelimiters:
+  EnforcedStyle: semantic
+
+Style/Lambda:
+  Enabled: false
+
+Style/SignalException:
+  EnforcedStyle: semantic
+
+Style/NumericLiteralPrefix:
+  Enabled: false
+
+Style/NumericLiterals:
+  Enabled: false
+
+Style/StringLiterals:
+  EnforcedStyle: double_quotes
+
+Style/SymbolArray:
+  Enabled: false
+
+Style/TrailingCommaInArguments:
+  EnforcedStyleForMultiline: comma
+
+Style/TrailingCommaInArrayLiteral:
+  EnforcedStyleForMultiline: comma
+
+Style/TrailingCommaInHashLiteral:
+  EnforcedStyleForMultiline: comma
diff --git a/Gemfile b/Gemfile
index 42089ad..1c05223 100644
--- a/Gemfile
+++ b/Gemfile
@@ -45,6 +45,7 @@ group :development do
   gem 'spring-watcher-listen', '~> 2.0.0'
 
   gem 'capistrano-rails'
+  gem 'rubocop', '~> 0.56'
 end
 
 group :test do
diff --git a/Gemfile.lock b/Gemfile.lock
index 0fe7aa7..47e8479 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -49,6 +49,7 @@ GEM
     archive-zip (0.11.0)
       io-like (~> 0.3.0)
     arel (9.0.0)
+    ast (2.4.0)
     bcrypt (3.1.12)
     bindex (0.5.0)
     bootsnap (1.3.0)
@@ -116,6 +117,10 @@ GEM
     nio4r (2.3.1)
     nokogiri (1.8.2)
       mini_portile2 (~> 2.3.0)
+    parallel (1.12.1)
+    parser (2.5.1.0)
+      ast (~> 2.4.0)
+    powerpack (0.1.1)
     public_suffix (3.0.2)
     puma (3.11.4)
     rack (2.0.5)
@@ -145,10 +150,19 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
+    rainbow (3.0.0)
     rake (12.3.1)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
+    rubocop (0.56.0)
+      parallel (~> 1.10)
+      parser (>= 2.5)
+      powerpack (~> 0.1)
+      rainbow (>= 2.2.2, < 4.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (~> 1.0, >= 1.0.1)
+    ruby-progressbar (1.9.0)
     ruby_dep (1.5.0)
     rubyzip (1.2.1)
     sass (3.5.6)
@@ -190,6 +204,7 @@ GEM
       thread_safe (~> 0.1)
     uglifier (4.1.10)
       execjs (>= 0.3.0, < 3)
+    unicode-display_width (1.3.2)
     web-console (3.6.2)
       actionview (>= 5.0)
       activemodel (>= 5.0)
@@ -216,6 +231,7 @@ DEPENDENCIES
   mysql2 (>= 0.4.4, < 0.6.0)
   puma (~> 3.11)
   rails (~> 5.2.0)
+  rubocop (~> 0.56)
   sass-rails (~> 5.0)
   selenium-webdriver
   spring
diff --git a/Rakefile b/Rakefile
index e85f913..9a5ea73 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,6 +1,6 @@
 # Add your own tasks in files placed in lib/tasks ending in .rake,
 # for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
 
-require_relative 'config/application'
+require_relative "config/application"
 
 Rails.application.load_tasks
diff --git a/config.ru b/config.ru
index f7ba0b5..441e6ff 100644
--- a/config.ru
+++ b/config.ru
@@ -1,5 +1,5 @@
 # This file is used by Rack-based servers to start the application.
 
-require_relative 'config/environment'
+require_relative "config/environment"
 
 run Rails.application