I have used a company in the Algarve that does that kind of work. You simply contact them and they do all the work for you. The woman I dealt with was very very helpful and actually saved me a lot of money when I eventually bought. She used to work for a real estate company so she knew exactly what to look for. They are well worth a try. Very prompt and very efficient and always friendly. If there is anyone who would like her contact details please let me know and I will gladly give them to you.