Remove User Access if they have been inactive ~2 months

I'd investigate the rules.module and views_bulk_operations.module

Something along the lines of:
1) Install rules and https://www.drupal.org/project/views_rules
2) Create a view similar to this which you can tweak slightly

$view = new view();
$view->name = 'display_users_not_logged_in';
$view->description = '';
$view->tag = 'default';
$view->base_table = 'users';
$view->human_name = 'Display Users Not Logged In';
$view->core = 7;
$view->api_version = '3.0';
$view->disabled = FALSE; /* Edit this to true to make a default view disabled initially */

/* Display: Master */
$handler = $view->new_display('default', 'Master', 'default');
$handler->display->display_options['use_more_always'] = FALSE;
$handler->display->display_options['access']['type'] = 'perm';
$handler->display->display_options['access']['perm'] = 'administer users';
$handler->display->display_options['cache']['type'] = 'none';
$handler->display->display_options['query']['type'] = 'views_query';
$handler->display->display_options['exposed_form']['type'] = 'basic';
$handler->display->display_options['pager']['type'] = 'full';
$handler->display->display_options['pager']['options']['items_per_page'] = '100';
$handler->display->display_options['pager']['options']['offset'] = '0';
$handler->display->display_options['pager']['options']['id'] = '0';
$handler->display->display_options['pager']['options']['quantity'] = '9';
$handler->display->display_options['style_plugin'] = 'table';
$handler->display->display_options['style_options']['columns'] = array(
  'name' => 'name',
  'login' => 'login',
  'created' => 'created',
  'access' => 'access',
  'login_1' => 'login_1',
);
$handler->display->display_options['style_options']['default'] = '-1';
$handler->display->display_options['style_options']['info'] = array(
  'name' => array(
    'sortable' => 0,
    'default_sort_order' => 'asc',
    'align' => '',
    'separator' => '',
    'empty_column' => 0,
  ),
  'login' => array(
    'sortable' => 0,
    'default_sort_order' => 'asc',
    'align' => '',
    'separator' => '',
    'empty_column' => 0,
  ),
  'created' => array(
    'sortable' => 0,
    'default_sort_order' => 'asc',
    'align' => '',
    'separator' => '',
    'empty_column' => 0,
  ),
  'access' => array(
    'sortable' => 0,
    'default_sort_order' => 'asc',
    'align' => '',
    'separator' => '',
    'empty_column' => 0,
  ),
  'login_1' => array(
    'sortable' => 0,
    'default_sort_order' => 'asc',
    'align' => '',
    'separator' => '',
    'empty_column' => 0,
  ),
);
/* Field: User: Name */
$handler->display->display_options['fields']['name']['id'] = 'name';
$handler->display->display_options['fields']['name']['table'] = 'users';
$handler->display->display_options['fields']['name']['field'] = 'name';
$handler->display->display_options['fields']['name']['label'] = '';
$handler->display->display_options['fields']['name']['alter']['word_boundary'] = FALSE;
$handler->display->display_options['fields']['name']['alter']['ellipsis'] = FALSE;
/* Field: User: Uid */
$handler->display->display_options['fields']['uid']['id'] = 'uid';
$handler->display->display_options['fields']['uid']['table'] = 'users';
$handler->display->display_options['fields']['uid']['field'] = 'uid';
$handler->display->display_options['fields']['uid']['link_to_user'] = FALSE;
/* Sort criterion: User: Created date */
$handler->display->display_options['sorts']['created']['id'] = 'created';
$handler->display->display_options['sorts']['created']['table'] = 'users';
$handler->display->display_options['sorts']['created']['field'] = 'created';
$handler->display->display_options['sorts']['created']['order'] = 'DESC';
/* Filter criterion: User: Last access */
$handler->display->display_options['filters']['access']['id'] = 'access';
$handler->display->display_options['filters']['access']['table'] = 'users';
$handler->display->display_options['filters']['access']['field'] = 'access';
/* Filter criterion: User: Last login */
$handler->display->display_options['filters']['login']['id'] = 'login';
$handler->display->display_options['filters']['login']['table'] = 'users';
$handler->display->display_options['filters']['login']['field'] = 'login';

/* Display: Rules */
$handler = $view->new_display('views_rules', 'Rules', 'views_rules_1');
$handler->display->display_options['pager']['type'] = 'some';
$handler->display->display_options['pager']['options']['items_per_page'] = '0';
$handler->display->display_options['pager']['options']['offset'] = '0';
$handler->display->display_options['rules_variables'] = array(
  'name' => array(
    'enabled' => 1,
    'rendered' => 0,
    'type' => 'user',
    'label' => 'User: Name',
    'name' => 'name',
  ),
  'login' => array(
    'enabled' => 1,
    'rendered' => 0,
    'type' => 'user',
    'label' => 'Last login',
    'name' => 'login',
  ),
  'created' => array(
    'enabled' => 1,
    'rendered' => 0,
    'type' => 'date',
    'label' => 'Created date',
    'name' => 'created',
  ),
  'access' => array(
    'enabled' => 1,
    'rendered' => 0,
    'type' => 'date',
    'label' => 'Last access',
    'name' => 'access',
  ),
  'login_1' => array(
    'enabled' => 1,
    'rendered' => 0,
    'type' => 'date',
    'label' => 'Last login',
    'name' => 'login_1',
  ),
  'uid' => array(
    'enabled' => 1,
    'rendered' => 0,
    'type' => 'user',
    'label' => 'Uid',
    'name' => 'uid',
  ),
);

3) Create a rule like this (Note This deletes User Entities so don't use on production site)
This will load the view loop through users and delete on cron event

{ "rules_prune_users_that_have_not_logged_in_" : {
    "LABEL" : "Prune Users That Have Not Logged In ",
    "PLUGIN" : "reaction rule",
    "OWNER" : "rules",
    "REQUIRES" : [ "rules", "views_rules" ],
    "ON" : { "cron" : [] },
    "DO" : [
      { "drupal_message" : { "message" : "Pruning Users at [site:current-date]" } },
      { "views_rules_collect_rows" : {
          "USING" : { "views_rules_display" : "display_users_not_logged_in:views_rules_1" },
          "PROVIDE" : {
            "name" : { "name" : "List of User: Name" },
            "uid" : { "uid" : "List of Uid" }
          }
        }
      },
      { "LOOP" : {
          "USING" : { "list" : [ "uid" ] },
          "ITEM" : { "list_item" : "Current list item" },
          "DO" : [
            { "drupal_message" : { "message" : "Delete [list-item:uid] [list-item:name]" } },
            { "entity_fetch" : {
                "USING" : { "type" : "user", "id" : [ "list-item:uid" ] },
                "PROVIDE" : { "entity_fetched" : { "entity_fetched" : "Fetched entity" } }
              }
            },
            { "entity_delete" : { "data" : [ "entity-fetched" ] } }
          ]
        }
      }
    ]
  }
}

That should get you most of the way there