The attack on realtors is gaining steam and going national following a historic $1.8 billion judgment in Missouri this fall that found a powerful realtors association had set up a system of collusion that was harming home-buyers by artificially inflating commissions. 

Since then, class action lawsuits that mirror the case made in Missouri reportedly have been filed in Illinois, Florida and Pennsylvania. 

Now, a class action lawsuit in California against the powerful National Association of Realtors (NAR) is similarly alleging collusion and anti-competitive business practices, joining the wave of lawsuits across the country spurred by the original October court decision. The state is by far the largest and most valuable residential real estate market in the country.