Get the Insider App A personalized feed, summary mode, and ad-free experience. Download the app Close icon Two crossed lines that form an ‘X’. It indicates a way to close an interaction, or dismiss a notification. Humza Zafar turned to rental arbitrage to build a business listing his leased apartments on Airbnb. Zafar says he now operates 106 units across Philadelphia, Detroit, Austin, Dallas, and Des Moines. He scaled up by putting profits back into the business and using credit cards to purchase furniture. Humza Zafar, 25, grosses about $150,000 a month based on his latest three-month moving average from renting over 100 units on a short-term basis through Airbnb.…