The office of D.C. Attorney General Karl Racine announced today that it’s suing six Maryland parents for $700,000 in fines for allegedly faking D.C. residency to send their children to D.C. schools for free.

According to the Attorney General’s Office (OAG), the parents had 10 children in multiple D.C. public schools, including Duke Ellington Schools of the Arts, Capitol Hill Montessori (which reportedly has an extensive waitlist), Ballou High School, McKinley Technology High School and Richard Wright Public Charter for Journalism and Media Arts.

Multiple families allegedly did not pay out-of-state tuition to keep the students in those schools for many years. Some are being sued for back payments for elementary, middle and high school years. The $700,000 sought by the OAG doesn’t include other penalties that could arise from further investigation, which could add up to hundreds of thousands of dollars.

“Residency fraud is theft and it is illegal,” said Attorney General Karl A. Racine in a press statement. “Parents who lie about residency to avoid paying non-resident tuition at District schools will face serious consequences for breaking the law.”

Since 2012, the OAG’s office says it has ramped up pursuits to gain back school funds from out-of-state families who try send their kids to schools in the District. Officials are not always able to collect the full amounts they seek in lawsuits since judgments don’t always rule in their favor, and many families choose to settle for simply repaying tuition and only some fees. Tuition ranges between $10,000-$14,000 a year per student.

As of May 2018, OAG officials say they have obtained 13 monetary judgments and 15 out-of-court settlements since 2012, totaling roughly $1.6 million. Many of the families charged choose to either work out a payment plan with the city or they may have their wages garnished.

Though Duke Ellington School of the Arts remained in the spotlight for issues with residency fraud, only one parent being sued today had a student attend the school. This latest group of lawsuits involves families with students going to schools in many parts of the District. When asked why only one case out of the 220 Duke Ellington families accused of residency fraud made it into the AG’s suit roundup (though about two-thirds of those families were cleared last month) Marrisa Geller, a spokesperson from the OAG, said the office doesn’t comment on cases they may or may not be working on, only saying more broadly that it takes time to build cases.

This story has been updated to reflect that the suit has been filed against six parents, not six families.

This story originally appeared on WAMU.