diff --git a/lib/ansible/modules/cloud/amazon/iam.py b/lib/ansible/modules/cloud/amazon/iam.py
index a96f8ca111..e05e388545 100644
--- a/lib/ansible/modules/cloud/amazon/iam.py
+++ b/lib/ansible/modules/cloud/amazon/iam.py
@@ -23,56 +23,70 @@ options:
     description:
       - Type of IAM resource
     choices: ["user", "group", "role"]
+    type: str
   name:
     description:
       - Name of IAM resource to create or identify
     required: true
+    type: str
   new_name:
     description:
       - When state is update, will replace name with new_name on IAM resource
+    type: str
   new_path:
     description:
       - When state is update, will replace the path with new_path on the IAM resource
+    type: str
   state:
     description:
       - Whether to create, delete or update the IAM resource. Note, roles cannot be updated.
     required: true
     choices: [ "present", "absent", "update" ]
+    type: str
   path:
     description:
       - When creating or updating, specify the desired path of the resource. If state is present,
         it will replace the current path to match what is passed in when they do not match.
     default: "/"
+    type: str
   trust_policy:
     description:
       - The inline (JSON or YAML) trust policy document that grants an entity permission to assume the role. Mutually exclusive with C(trust_policy_filepath).
     version_added: "2.2"
+    type: dict
   trust_policy_filepath:
     description:
       - The path to the trust policy document that grants an entity permission to assume the role. Mutually exclusive with C(trust_policy).
     version_added: "2.2"
+    type: str
   access_key_state:
     description:
       - When type is user, it creates, removes, deactivates or activates a user's access key(s). Note that actions apply only to keys specified.
-    choices: [ "create", "remove", "active", "inactive"]
+    choices: [ "create", "remove", "active", "inactive", "Create", "Remove", "Active", "Inactive"]
+    type: str
   key_count:
     description:
       - When access_key_state is create it will ensure this quantity of keys are present. Defaults to 1.
-    default: '1'
+    default: 1
+    type: int
   access_key_ids:
     description:
       - A list of the keys that you want impacted by the access_key_state parameter.
+    type: list
   groups:
     description:
       - A list of groups the user should belong to. When update, will gracefully remove groups not listed.
+    type: list
   password:
     description:
       - When type is user and state is present, define the users login password. Also works with update. Note that always returns changed.
+    type: str
   update_password:
     default: always
     choices: ['always', 'on_create']
     description:
      - C(always) will update passwords if they differ.  C(on_create) will only set the password for newly created users.
+    type: str
 notes:
   - 'Currently boto does not support the removal of Managed Policies, the module will error out if your
     user/group/role has managed policies when you try to do state=absent. They will need to be removed manually.'
@@ -603,11 +617,9 @@ def delete_role(module, iam, name, role_list, prof_list):
 def main():
     argument_spec = ec2_argument_spec()
     argument_spec.update(dict(
-        iam_type=dict(
-            default=None, required=True, choices=['user', 'group', 'role']),
+        iam_type=dict(required=True, choices=['user', 'group', 'role']),
         groups=dict(type='list', default=None, required=False),
-        state=dict(
-            default=None, required=True, choices=['present', 'absent', 'update']),
+        state=dict(required=True, choices=['present', 'absent', 'update']),
         password=dict(default=None, required=False, no_log=True),
         update_password=dict(default='always', required=False, choices=['always', 'on_create']),
         access_key_state=dict(default=None, required=False, choices=[
diff --git a/lib/ansible/modules/cloud/amazon/iam_cert.py b/lib/ansible/modules/cloud/amazon/iam_cert.py
index 3476bf052e..dc55cec6e6 100644
--- a/lib/ansible/modules/cloud/amazon/iam_cert.py
+++ b/lib/ansible/modules/cloud/amazon/iam_cert.py
@@ -13,6 +13,10 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
 ANSIBLE_METADATA = {'metadata_version': '1.1',
                     'status': ['preview'],
                     'supported_by': 'community'}
@@ -30,36 +34,44 @@ options:
     description:
       - Name of certificate to add, update or remove.
     required: true
+    type: str
   new_name:
     description:
       - When state is present, this will update the name of the cert.
       - The cert, key and cert_chain parameters will be ignored if this is defined.
+    type: str
   new_path:
     description:
       - When state is present, this will update the path of the cert.
       - The cert, key and cert_chain parameters will be ignored if this is defined.
+    type: str
   state:
     description:
       - Whether to create(or update) or delete certificate.
       - If new_path or new_name is defined, specifying present will attempt to make an update these.
     required: true
     choices: [ "present", "absent" ]
+    type: str
   path:
     description:
       - When creating or updating, specify the desired path of the certificate.
     default: "/"
+    type: str
   cert_chain:
     description:
       - The path to, or content of the CA certificate chain in PEM encoded format.
         As of 2.4 content is accepted. If the parameter is not a file, it is assumed to be content.
+    type: str
   cert:
     description:
       - The path to, or content of the certificate body in PEM encoded format.
         As of 2.4 content is accepted. If the parameter is not a file, it is assumed to be content.
+    type: str
   key:
     description:
       - The path to, or content of the private key in PEM encoded format.
         As of 2.4 content is accepted. If the parameter is not a file, it is assumed to be content.
+    type: str
   dup_ok:
     description:
       - By default the module will not upload a certificate that is already uploaded into AWS.
diff --git a/lib/ansible/modules/cloud/amazon/iam_group.py b/lib/ansible/modules/cloud/amazon/iam_group.py
index ff62c27ef8..36d74f6598 100644
--- a/lib/ansible/modules/cloud/amazon/iam_group.py
+++ b/lib/ansible/modules/cloud/amazon/iam_group.py
@@ -14,6 +14,9 @@
 # You should have received a copy of the GNU General Public License
 # along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
 ANSIBLE_METADATA = {'metadata_version': '1.1',
                     'status': ['preview'],
                     'supported_by': 'community'}
@@ -33,19 +36,23 @@ options:
     description:
       - The name of the group to create.
     required: true
+    type: str
   managed_policy:
     description:
       - A list of managed policy ARNs or friendly names to attach to the role. To embed an inline policy, use M(iam_policy).
     required: false
+    type: list
   users:
     description:
       - A list of existing users to add as members of the group.
     required: false
+    type: list
   state:
     description:
       - Create or remove the IAM group
     required: true
     choices: [ 'present', 'absent' ]
+    type: str
   purge_policy:
     description:
       - Detach policy which not included in managed_policy list
diff --git a/lib/ansible/modules/cloud/amazon/iam_managed_policy.py b/lib/ansible/modules/cloud/amazon/iam_managed_policy.py
index a8bdebb7d9..44d54d3fb1 100644
--- a/lib/ansible/modules/cloud/amazon/iam_managed_policy.py
+++ b/lib/ansible/modules/cloud/amazon/iam_managed_policy.py
@@ -22,27 +22,37 @@ options:
     description:
       - The name of the managed policy.
     required: True
+    type: str
   policy_description:
     description:
       - A helpful description of this policy, this value is immutable and only set when creating a new policy.
     default: ''
+    type: str
   policy:
     description:
       - A properly json formatted policy
+    type: json
   make_default:
     description:
       - Make this revision the default revision.
     default: True
+    type: bool
   only_version:
     description:
       - Remove all other non default revisions, if this is used with C(make_default) it will result in all other versions of this policy being deleted.
     type: bool
-    default: 'no'
+    default: false
   state:
     description:
       - Should this managed policy be present or absent. Set to absent to detach all entities from this policy and remove it if found.
     default: present
     choices: [ "present", "absent" ]
+    type: str
+  fail_on_delete:
+    description:
+    - The I(fail_on_delete) option does nothing.
+    type: bool
+
 author: "Dan Kozlowski (@dkhenry)"
 extends_documentation_fragment:
   - aws
@@ -277,7 +287,7 @@ def main():
         policy=dict(type='json'),
         make_default=dict(type='bool', default=True),
         only_version=dict(type='bool', default=False),
-        fail_on_delete=dict(type='bool', default=True),
+        fail_on_delete=dict(type='bool'),
         state=dict(default='present', choices=['present', 'absent']),
     ))
 
diff --git a/lib/ansible/modules/cloud/amazon/iam_mfa_device_info.py b/lib/ansible/modules/cloud/amazon/iam_mfa_device_info.py
index 33a888e8d3..b09da4da5e 100644
--- a/lib/ansible/modules/cloud/amazon/iam_mfa_device_info.py
+++ b/lib/ansible/modules/cloud/amazon/iam_mfa_device_info.py
@@ -24,6 +24,7 @@ options:
   user_name:
     description:
       - The name of the user whose MFA devices will be listed
+    type: str
 extends_documentation_fragment:
     - aws
     - ec2
diff --git a/lib/ansible/modules/cloud/amazon/iam_password_policy.py b/lib/ansible/modules/cloud/amazon/iam_password_policy.py
index 02b0147f19..2d78ee27f2 100644
--- a/lib/ansible/modules/cloud/amazon/iam_password_policy.py
+++ b/lib/ansible/modules/cloud/amazon/iam_password_policy.py
@@ -28,11 +28,13 @@ options:
       - Specifies the overall state of the password policy.
     required: true
     choices: ['present', 'absent']
+    type: str
   min_pw_length:
     description:
       - Minimum password length.
     default: 6
     aliases: [minimum_password_length]
+    type: int
   require_symbols:
     description:
       - Require symbols in password.
@@ -65,11 +67,13 @@ options:
         do not expire automatically.
     default: 0
     aliases: [password_max_age]
+    type: int
   pw_reuse_prevent:
     description:
       - Prevent re-use of passwords.
     default: 0
     aliases: [password_reuse_prevent, prevent_reuse]
+    type: int
   pw_expire:
     description:
       - Prevents users from change an expired password.
diff --git a/lib/ansible/modules/cloud/amazon/iam_server_certificate_info.py b/lib/ansible/modules/cloud/amazon/iam_server_certificate_info.py
index 9f833ea2a1..ec7929723a 100644
--- a/lib/ansible/modules/cloud/amazon/iam_server_certificate_info.py
+++ b/lib/ansible/modules/cloud/amazon/iam_server_certificate_info.py
@@ -26,6 +26,7 @@ options:
     description:
       - The name of the server certificate you are retrieving attributes for.
     required: true
+    type: str
 extends_documentation_fragment:
     - aws
     - ec2
diff --git a/lib/ansible/modules/cloud/amazon/iam_user.py b/lib/ansible/modules/cloud/amazon/iam_user.py
index f5d319405e..bf5da8513c 100644
--- a/lib/ansible/modules/cloud/amazon/iam_user.py
+++ b/lib/ansible/modules/cloud/amazon/iam_user.py
@@ -2,6 +2,9 @@
 # Copyright (c) 2017 Ansible Project
 # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
 
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
 ANSIBLE_METADATA = {'metadata_version': '1.1',
                     'status': ['preview'],
                     'supported_by': 'community'}
@@ -19,15 +22,18 @@ options:
     description:
       - The name of the user to create.
     required: true
+    type: str
   managed_policy:
     description:
       - A list of managed policy ARNs or friendly names to attach to the user. To embed an inline policy, use M(iam_policy).
     required: false
+    type: list
   state:
     description:
       - Create or remove the IAM user
     required: true
     choices: [ 'present', 'absent' ]
+    type: str
   purge_policy:
     description:
       - Detach policies which are not included in managed_policy list
diff --git a/test/sanity/ignore.txt b/test/sanity/ignore.txt
index cd3deed7aa..9f787ebaa6 100644
--- a/test/sanity/ignore.txt
+++ b/test/sanity/ignore.txt
@@ -947,24 +947,6 @@ lib/ansible/modules/cloud/amazon/execute_lambda.py metaclass-boilerplate
 lib/ansible/modules/cloud/amazon/execute_lambda.py validate-modules:doc-default-does-not-match-spec
 lib/ansible/modules/cloud/amazon/execute_lambda.py validate-modules:parameter-type-not-in-doc
 lib/ansible/modules/cloud/amazon/execute_lambda.py validate-modules:doc-missing-type
-lib/ansible/modules/cloud/amazon/iam.py validate-modules:no-default-for-required-parameter
-lib/ansible/modules/cloud/amazon/iam.py validate-modules:doc-choices-do-not-match-spec
-lib/ansible/modules/cloud/amazon/iam.py validate-modules:parameter-type-not-in-doc
-lib/ansible/modules/cloud/amazon/iam.py validate-modules:doc-missing-type
-lib/ansible/modules/cloud/amazon/iam_cert.py future-import-boilerplate
-lib/ansible/modules/cloud/amazon/iam_cert.py metaclass-boilerplate
-lib/ansible/modules/cloud/amazon/iam_cert.py validate-modules:doc-missing-type
-lib/ansible/modules/cloud/amazon/iam_group.py future-import-boilerplate
-lib/ansible/modules/cloud/amazon/iam_group.py metaclass-boilerplate
-lib/ansible/modules/cloud/amazon/iam_group.py validate-modules:parameter-type-not-in-doc
-lib/ansible/modules/cloud/amazon/iam_group.py validate-modules:doc-missing-type
-lib/ansible/modules/cloud/amazon/iam_managed_policy.py validate-modules:undocumented-parameter
-lib/ansible/modules/cloud/amazon/iam_managed_policy.py validate-modules:doc-default-does-not-match-spec
-lib/ansible/modules/cloud/amazon/iam_managed_policy.py validate-modules:parameter-type-not-in-doc
-lib/ansible/modules/cloud/amazon/iam_managed_policy.py validate-modules:doc-missing-type
-lib/ansible/modules/cloud/amazon/iam_mfa_device_info.py validate-modules:doc-missing-type
-lib/ansible/modules/cloud/amazon/iam_password_policy.py validate-modules:parameter-type-not-in-doc
-lib/ansible/modules/cloud/amazon/iam_password_policy.py validate-modules:doc-missing-type
 lib/ansible/modules/cloud/amazon/iam_policy.py future-import-boilerplate
 lib/ansible/modules/cloud/amazon/iam_policy.py metaclass-boilerplate
 lib/ansible/modules/cloud/amazon/iam_policy.py validate-modules:no-default-for-required-parameter
@@ -975,11 +957,6 @@ lib/ansible/modules/cloud/amazon/iam_role.py future-import-boilerplate
 lib/ansible/modules/cloud/amazon/iam_role.py metaclass-boilerplate
 lib/ansible/modules/cloud/amazon/iam_role.py validate-modules:parameter-type-not-in-doc
 lib/ansible/modules/cloud/amazon/iam_role_info.py validate-modules:doc-missing-type
-lib/ansible/modules/cloud/amazon/iam_server_certificate_info.py validate-modules:parameter-type-not-in-doc
-lib/ansible/modules/cloud/amazon/iam_user.py future-import-boilerplate
-lib/ansible/modules/cloud/amazon/iam_user.py metaclass-boilerplate
-lib/ansible/modules/cloud/amazon/iam_user.py validate-modules:parameter-type-not-in-doc
-lib/ansible/modules/cloud/amazon/iam_user.py validate-modules:doc-missing-type
 lib/ansible/modules/cloud/amazon/kinesis_stream.py pylint:blacklisted-name
 lib/ansible/modules/cloud/amazon/kinesis_stream.py validate-modules:no-default-for-required-parameter
 lib/ansible/modules/cloud/amazon/kinesis_stream.py validate-modules:doc-default-does-not-match-spec