I inspected a house yesterday and the home next door is condemned. The home is boarded up and has signs from the city posted in multiple locations. I need to disclose this in my report, but I have been unable to quantify the impact, if any, on value. The Subject property is a sale for full market value and was on the market for less than 30 days. I have contacted the city, but they can only give me information if a do a public records request. Who knows what information I will get and how long it will take to get it. I searched for other sales near the property for the last five years and there wasn't any. In addition, our city has a list of the top fifteen nuisance properties which includes some condemned houses. I have looked for sales adjacent to several of those listed properties. There was one sale across the street from one of the nuisance properties two years ago, but I am unable to determine if occurred during time the neighboring property was condemned. There is no other online record of condemned houses here. Finally, I did an AI search, and it suggest nationally that it could reduce the value 5% to 15% but I wasn't satisfied with any of the sources it provided. Does anybody have any suggestions on how to properly handle the situation.