The first thing I'd do is get my license. Start small with some type of riding mower, Trimmer, Edger and Blower and work my way up from there, add better equipment through time or as you build your business and reputation and can pay for it, don't finance your equipment, if you do you'll not see any real profit for a number of years. Remember word of mouth is your best advertisement, do a good job, keep you clients list and routes close so you can cut your gas expenses and spend more time cutting and be sure not to under bid jobs.