car wash business

Hello, I recently bought a self service carwash in a lower to middle income area in North Texas. It has 7 bays, including one big truck bay, and then 5 vacuum/extra stalls with no water. I have a guy who is interested in just renting the whole property from me and he runs it and collects all...

I have the opportunity to purchase a car was from a friend. Self-serve, 6 bays, 6 vacuums. He’s given me numbers and its grossing 90k/year. I’ve managed it several times while he’s been gone, and it seems like a good opportunity. What questions should I be asking/what should I be looking at?