I agree with Kay. There is a huge need for quality freelance writers.
Think multiple streams of income, including your "labor". My company (me) makes money through marketing consulting, design, development, hosting, website management, online ad management, publishing my own websites and the occasional sale of one of my established sites. So, start up "Me, Inc." and do what you know in various capacities.
There is no business you will be able to just buy and have it be completely passive, making you money with no effort on your part. There is always something that needs to be done.