Gerov was elected to the municipal assembly of Negotin in the 2000 local elections as a member of the Democratic Party of Serbia and was subsequently chosen as president of the assembly. She left the DSS soon after the election, saying that she did not approve of the party leadership's tendencies toward centralization, and launched her own local political group called the "Movement for Negotin and the Timok Valley" (Pokret za Negotinsku i Timočku krajinu, PNTK).[2] She won a direct election as mayor in the 2004 local elections[3] and continued in the position following her party's victory in the 2008 elections.[4]
On 10 November 2009, the government of Serbia dissolved Negotin's municipal assembly and dismissed Gerov as mayor; she was appointed to a provisional authority that governed the city pending a new election in 2010.[5] She joined the LDP shortly before this election and was named as the party's district manager for the Bor District. The LDP's electoral list finished a strong third after what Gerov described as an extremely bitter campaign, marked by personal attacks and offensive photo-montages posted by unknown parties around the city.[6] She was re-elected in the 2014 local elections, in which the LDP won six out of forty-five seats, and led the party's group in the sitting of the assembly that followed.[7] The LDP did not field a slate in the 2017 elections, and she stood down from office in that year.