BERLIN -- A lawyer for the reclusive collector of a massive trove of art found in Germany says he is considering demands for the restitution of some of the works.

Authorities found more than 1,400 works of art at Cornelius Gurlitt's Munich apartment in 2012 while investigating a tax case. Authorities have been checking whether hundreds of pieces were seized by the Nazis, but plan to return works belonging indisputably to Gurlitt.

Hannes Hartung, a Munich lawyer representing Gurlitt, says his client is interested in "fair and just solutions" that could take various forms. He stressed in a telephone interview that "each case is unique."

Hartung said Monday that "there are around five or six restitution demands that have to be looked at closely," though the process is at an early stage.