Arbitrage is when an investor purchases an investment property below market value and quickly sells or rents it for a profit. Real estate arbitrage occurs when a real estate investor purchases an investment property and sells it simultaneously at a higher price.In real estate arbitrage, used as a verb "arbitraging," means to buy one property and then sell that same property for a profit. Arbitrage in real estate is a type of investment strategy where real estate investors find new investment properties, rent them, and then sublease them. Has anyone tried the airbnb arbitrage strategy in the NOVA market? What do you guys think of Arlington, Annandale, Alexandria and Tysons Corner Airbnb? Rental arbitrage is the practice of renting out a longterm rental on a shortterm basis.