Possible Clues:

• Apartment building VIP, informally
• Tenant's contact, casually
• Apartment building V.I.P., for short
• Tenant's contact, briefly
• Apartment building overseer, informally
• Dweller in Apt. 1-A, say
• Apartment building V.I.P
• Apartment building V.I.P., in slang
• Person whom people take their complaints to, informally
• Landlord's employee, informally