Comply with Do Not Call lists, other TCPA requirements, and user requests not to contact and provide a number/contact information that called parties can use to prosecute or report any alleged violations of law.5.

Not sure how strongly they would try to persecute err I mean prosecute over something like that in Cali.I think you pretty much have three choices:1) Get your license and risk the fears you stated.2) Not get your license and continue to not be able to monetize those leads.3) Not get your license make an arrangement with an agent that is most likely going to be at least technically illegal.

I have bolded and underlined the portions relevant to wholesalers for your convenience. 452.17 452.17  Penalties.(1)Any person who engages in or follows the business or occupation of, or advertises or holds himself or herself out as or acts temporarily or otherwise as a broker or salesperson in this state without a license under this chapter shall be prosecuted by the district attorney in the county where the violation occurs or by the attorney general and may be fined not more than $1,000 or imprisoned not more than 6 months or both.452.01 Definitions.(2)“Broker" means any person not excluded by sub. (3), who does any of the following:(a) For another person, and for commission, money, or other thing of value, negotiates or offers or attempts to negotiate, whether directly or indirectly, a sale, exchange, purchase, or rental of, or the granting or acceptance of an option to sell, exchange, purchase, or rent, an interest or estate in real estate, a time share, or a business or its goodwill, inventory, or fixtures, whether or not the business includes real property.

The Act, however, bars the IRS from using several of its normal enforcement tools, such as criminal prosecutions and levies. §5000A(g)(2).

Let the tenant know - in writing - that you intend to prosecute to the full extent of the law if he refuses to vacate.

If you are planning on violating fair housing, it won't be that hard for the government to find out who you are and prosecute, no matter what name you gave to residents or prospective residents.

Fraud is prosecuted by the FBI.

How is prosecuting violations of the law a shake down?

Ultimately they are going to be the ones to either accept or prosecute. 

@Matthew Meunier Although you'll see many STR's advertised within Naples, and Collier county as a whole, it's important to know that they both have completely banned personally owned and operated STR's, so you would be in violation of those ordinances, and at risk of legal prosecution if you were to purchase and operate there.