app.controller('Controller1', function($rootScope, $scope)
{
    :
    :
});

app.controller('Controller2', function($rootScope, $scope)
{
    :
    :
});

app.controller('Controller3', function($rootScope, $scope)
{
    :
    :
});

app.factory('userConfig', function($rootScope, appConfig, UserConfig)
{
    $rootScope.userConfig = UserConfig.get(function(data)
    {
        $rootScope.userConfig = _.clone(data.userproperties, true);
        :
        :
    });
});

var app = angular.module('app',[ 'commonServices']);

app.factory('userConfig', function($rootScope, appConfig, UserConfig)
{
    $rootScope.userConfig = UserConfig.get(function(data)
    {
        $rootScope.userConfig = _.clone(data.userproperties, true);
        :
        :
    });
});

app.controller('Controller1', function($rootScope, $scope)
{
    :
    :
});

app.controller('Controller2', function($rootScope, $scope)
{
    :
    :
});

app.controller('Controller3', function($rootScope, $scope)
{
    :
    :
});

app.factory('userConfig', function($rootScope, appConfig, UserConfig) {
    UserConfig.get(function(data) {
      $rootScope.userConfig = _.clone(data.userproperties, true);
    });
});

<div ng-if="userConfig">
   <div ng-controller="Controller1">foo1</div>
   <div ng-controller="Controller2">foo2</div>
   <div ng-controller="Controller3">foo3</div>
</div>