Possible Clues:

• Sponges
• Moochers
• Passengers - soldier has lots
• Suckers that make suckers of others
• Parties arranged housing for hangers-on
• The suckers that make a sucker of you
• Mooches
• The suckers have a knock-up where the buildings will be
• Cohen's celestial hangers-on
• They have their supporters - hosts of them!