We did setup an online community based on SocialEngine. There are some minor bugs which needs to be fixed, but nothing critical. Most important is a check that everything is up and running and that we don't have any security issues. The module we need is almost identical to this ones: http://www.terminsvertreter.com http://www.interlex.de/Terminsvertretung/ https://www.terminsvertretung.de/Bundeslaender/Terminsvertreter A lawyer should be able to use the search form to find another lawyer in a particular city who can act as a representative for the first lawyer. They are doing this when they need to manage some minor things a the court in a city which is far away from their office and they don't want to travel the whole distance. So mainly it is a search form for other members from a particular city or members who have their office in the proximity of the city/court.