My goal here is to allow me remote ssh access for me to /var/www
my user name is acidrain.

what i have done:
sudo usermod -a -G www-data acidrain
sudo chown -R www-data:www-data /var/www
sudo chmod -R g+rw /var/www

This works. Now my current issue is when i login via ssh, and browse to /var/www and upload a file, its ownership is now acidrain:acidrain.
This now makes it so i cannot modify(delete, overwrite, read) files.

Please help.
Im asking in #ubuntu because this is a linux based issue for me. NOT ssh.