Operating an escort "agency" will always be illegal. No minors, drugs, weapons and no ripping off clients means that you will probably be left alone. I think you should work at an agency [do the phones or as escort] to understand the biz before you take it on. It can be a thankless job. And many have tried, few have suceeded.
If you work for an agency, the escorts are never charged. Only owners, drivers and phone person for living off the avails.
Gramage: Only indy girls doing outcalls are technically legal. Be careful when you dispense advice if you base knowledge on TERB discussions, buddy.
I would say get a lawyer for some advice if you really want legal advice. Or get in touch with Maggie's - an organization for sex workers.
DD