So I didn't do enough due diligence

[Aaron Desimone]

I recently bought a foreclosure house. It is on a narrow lot with a garage on it. While the house was vacant the neighbor came and dug up the leach fields for the house I just bought. He told me it was to detour people from purchasing it because he wanted to. I had thought that there was public sewer so I never thought anything if it (very close to the city). I am starting the process of identifying where the actual septic tank is (probably on the neighbors property from how narrow the lot is, and the angle the pipe is running in the basement). The county health department has no records of there being a septic at all (i assume due to the age of the house, or possibly just not getting a permit). I guess I don't really even know my questions at this point until I find the septic and talk to the neighbor (who has made it clear that they don't want the septic on their property) Any advice?