I'm not particularly good at this game, but this is generally how I start out:
1. Go to the Co-op. I usually recruit ~4 Hippies, if you want to get a full six (for squad "Herb Patrol") do so.
2. Have however many hippies you got sell brownies for one day. After that day, move them to a different safe house. (So heat doesn't build up at your founders right away.) Once they arrive at the new house, set them to selling brownies again.
3. Once you have a nice brownie income (about a thousand stocked), have the entire Herb Patrol spray-paint the Crack Houses. This will eventually get them to 50 Juice, and are less likely to rat on you if they get caught.
4. At this point, you can either have them go back to selling brownies, or equip them with swords and have them kill the bouncer at the cigar bar until they get to about 100 Juice. If you opt to go the way of the murder-spree, have them sell a bit first so you'll have enough money to pay for the swords. Once they hit a hundred juice, have them surrender at the police station. I always start with a lawyer, and they should be able to get off. Once they're back at base, let them sell brownies again. They should never rat on you.
Like I said above, I always pick the lawyer option during founder creation. This should get you a nice cash build-up, and and if you're lucky they could finance the majority of your operation for the rest of the game.
As for the above "I'm not good at this game" comment, I typically do something stupid with my founder while doing the above, and get them killed before I can get everything set up nicely. Ah well.