FHA up to 4 units - question

[Jon Mark]

I have found a listing that consists of 4 homes, all on the same street and neighboring lots, (all on one survey) that are listed for sale at 560,000. I know with FHA you can invest in up to a 4 Unit property, but I’m wondering if this would be considered 4 units? They are all on the same survey legally, and as a result cannot be individually sold without re-doing the survey. I can afford 3.5 percent down, not 20 percent, is the reason I ask. They will still cash flow well after the additional costs of a FHA loan. Thanks for any input and advice