My wife and I, along with two small children recently moved into a town house development in Tampa Bay FL which has 5 townhomes to a row all connected. When we moved in I noticed a couple roaches every few days. I started spraying and this lessoned. I sealed up cracks and now I see one every two or three weeks walking across our downstairs floor. Is this an issue or is it coming from another unit next to us? Thank you.

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