The Hausprecher represents the house to the other Spokesmen and the administration. The Spokesman is the chairman of the Hausparlament and the Hausvollversammlung. Futhermore he has the domestic authority and keeps the keys for the house.
To get in touch with your Spokesman write an e-mail to firstname.lastname@example.org. "X" represents the house-number. You can also call them by dialing 475x, where x is the according house number.