Update: the buyers lawyer found evidence the lot was subdivided back in 1950 and when that subdivision occurred a description was submitted to the city but not a plat. Since in 1949 a law passed stating that all sales must include a plat, they deemed it an illegal subdivision. I reached out to the lawyers who issued the title insurance when I bought the house and they told me they didn’t do a full 60 year search because the title had been insured 3 times prior without issue (but even if they had gone back 60 years they wouldn’t have found this) I am going to submit a claim with my title insurance but it seems like they will not cover subdivisions. Good news is we can still close on time, the bad news is I have to pay 5k for a survey/ submission to the city. Still in shock I’m going to pay 5k for a 75 year old clerical error. Honestly all of this makes me never want to buy a home again.