We bought an apartment through this agency. I don't advise anyone. Their duties included at least checking the arrears of utility bills of previous owners. They checked only the housing, gas and electricity. As it turned out, an illegal column was installed for gas, we had to pay a huge debt for heat ourselves, and we had to pay a small amount for light. There was also a huge problem with the tenant of the apartment, as a result of illiterate negotiations with the seller, we had to keep the tenant for free for half a month + pay for his communal apartment, because the previous owners also cheated him with a deposit.