Buying a house is not eligible for a residence permit. But there are ways, but only if you have enough cash to spare. If you invest enough money to have a positive impact on your local economy, then you will get a residence permit. General guidelines, this means that you need to invest 250,000 euros and create five jobs. Now, if you are rich and have an excellent German business consulting company, you can set up an investment company in Germany, buy investment real estate or other business projects, and create five jobs (administrators, ground staff, etc.) through the principle of self-employment. , And you need to prove to the government that this investment is “financially safe”, and you are doing all of this for your own career. With the assistance of an immigration consultant from your business consulting company, you will get a residence permit.