What is a repeater? The lot houses are in a line, not triangle. We currently have one router for the two houses, but very soon will include the third (our office).To share from house-to-house, you need a strong RF signal so look for MIMO Class routers with multiple antennas, three if you can find one. If the lot layout is like a triangle between the houses, one good router should work, otherwise when lined-up like a fence, you will need a repeater.