First of all, it's important to bear in mind that to apply for a residence visa in Portugal, you need to find out if you meet the requirements for any of the existing migration courses. None of them require you to have high savings. There are residence visas resulting from passive income and residence visas resulting from work, and your case would have to be analyzed to see if you fit into any of the possibilities. Furthermore, we can't be the ones to tell you whether or not you should take out a loan to invest in Portugal. Every investment has risks associated with it, and taking out a loan is something that needs to be weighed up considering several factors. Before you consider taking out a loan to move forward with an immigration process, you should consider whether, in the long term, this project will bring you the return you need. Immigration in itself is an emotional and financially exhausting process, so everything should be analyzed very carefully.
