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One question that every apartment investor will ask themselves at one time or another is, "How to raise rents," or "How can I raise rents fast?" This is especially true when taking over a new property, or for an investor that has owned a building for a number of years. I am going to put on my "Coach" uniform for this one, so get ready for my no-nonsense answer...
from: http://ezinearticles.com/?Apartment-Investing---How-to-Raise-Rents&id=3911269
