Like in all of Maricopa County escorting is very dangerous with mass stings under the scam of sex trafficking and under aged when 95% of arrests are in private consenting adults.
Be ware of ads on Backpage that may be sting ads especially advertising young 20 year olds with fake pictures and the undercover happens to mention she is only age 16. This entraps those that realize the age of consent is 18 not 16 as in most states so you may face a child prostitution felony and be a lifetime registered sex offender. Just happened to a school teacher.
About a year ago Scottsdale passed new law making escorting without a license a criminal instead of civil offense. So if don't have escort license number on ads its automatic mandatory 15 days in jail on first offense. In order to comply have to have full information, drivers license etc from every client with exactly what the services were and of course nothing sexual allowed. Impossible to comply with and last I heard no licenses even applied for. The intent of the law is to protect Scottsdale tourists - from any physical pleasures. In Phoenix its still a civil violation but if ads have bad words like GFE its an automatic solicitation bust and mandatory 15 days minimum in jail - usually Sheriff Joe's Tent City and opportunity to be on the women's chain gang cleaning up highways etc.
There are almost no agencies any more since if work with more than just the individual independent (have a driver, phone helper etc) its a criminal enterprise felony with many years in prison. About 100 cases recently with County Attorney Montgomery threatening up to 40 years in prison for a hand release if don't take a plea deal for probation and life long felon.
LE has gone mad in Phoenix/Scottsdale and related areas all on the scam of all prostitutes are victims and clients are sex traffickers. We then have Project Rose Roundups to Bethany Home Church. For Catholic Charities funded by the city, offers to "save you" if you admit you are a victim. If you refuse to play the fantasy victim you go to jail.
In the U.S. we have none of the freedoms you enjoy in Canada and huge risks for massage and companionship providers.