bexar, texas, but includes san antonio will luce be included. those who use an llc to buy or sell real estate under a certain value have to disclose the true owner of the llc and their source of income. now this only pertains to those who pay all cash, so if you get a mortgage banks are already required to under know your client rules to find identity of the buyers. now, the overseas wealthy have been increasingly turning to real estate to hide their fortunes. >> real estate tends to be a good vehicle to launder money because it's very vulnerable and there are no regulations in place, until now, so someone from russia or mexico or from advance la who wanted to buy residential real estate could have done so without disclosing who that person is. >> the treasury says 25% of the transactions in the pilot program were suspicious. one person made a $16 million cash withdrawal from his bank account and another moved $7 million around several south american shell companies.