Good afternoon. If the house is not new and it was operated for a long time, then in any case, something needs to be done there. My opinion is that it is better to carefully prepare the building for sale and make the necessary repair. Since this will definitely affect its cost. When I bought my house, I chose with poor repairs, because I did not have enough money for normal. She herself turned to Pom Waterproofing to make the basement wall crack repair . If necessary, I advise you to contact them, as they do quickly, efficiently and inexpensive. But you can sell it at a more profitable price for you.