Will the bad feng shui in the old house still affect the current fortune?

Generally speaking, it still has an impact, because in geomantic omen, ancestral houses and graves have a great influence on future generations. Feng shui is mainly the feng shui of yin house and yang house. If the house you are talking about is not an ancestral home, the impact will not be too great. I suggest that you put the things in the town house in the old house, but you must pay attention to them. You can ask Mr. Feng Shui to have a look. Hope to adopt, thank you!