There seems to be an online directory for everything that people have a need for. This includes looking up available law firms in Perth and other major cities in Australia. There tends to be quite a few lawyers and partnerships in major cities, often for specialty services. Usually a lawyer is able to take on a variety of cases, although this depends on the maturity of a firm and the people available there.
A website that lists all available services should include the names of the individual advocates at the firm because they often work as individuals and have their own specialty. The firm as a whole might receive reviews as well as information about its cost and the entire spectrum of cases it conventionally handles. Expectations about when to receive services and who they take on are all very valuable bits of info to have.
