Section 8 Rental Income

[William Hughes]

Hi. I'm analyzing a property, and was wondering if anybody could help me understand the rental income line item in the financial statements. I've attached screenshots of the rent roll and income statement. As you can see, many of the tenants are section 8. There are big spikes in section 8 income in Sept. 2019, Mar 2020, and Jun 2020. Does anybody know what might be causing these spikes? Is it something to do with how Section 8 works? Any help is appreciated. Thank you!