where or how can I find clients for my home-based transcription services?

my cousin and I have an existing computer shop and we want to engage in a transcription-services business particularly on legal transcription coz we were already quite acustom in transcribing such works here locally.How can we have foreign clients then? Where in the web can we meet possible clients,legal / medical, etc.Are there standards we have to meet first before we can attract clients? What and How? We would like to start on few clients first then gradually increase since at the moment we have limited personnel to do the jobs.Maybe we can serve just around 10-15 clients daily.