ROCKVILLE -- Neal Potter, a 75-year-old county councilman, defeated incumbent Sidney Kramer yesterday for the second time in as many months to win election as Montgomery County executive.
Mr. Kramer, a millionaire businessman and developer whom Mr. Potter bested in the September primary, mounted a write-in campaign that attracted only about 20 percent of the vote to Mr. Potter's 61 percent.
Republican businessman Albert Ceccone tried to exploit the Democratic split, but he fell far short.
Mr. Potter, a maverick councilman, pledged to control the growth of Montgomery, Maryland's most populated jurisdiction, and to curb developers' influence on county government.
In Prince George's County, Parris N. Glendening, a Democrat, breezed to a third term as county executive against the GOP's Charles W. Sherren Jr., a Mitchellville businessman.
State's Attorney Alexander Williams Jr., a Democrat and the rising star of the county's black politicians, defeated Arthur A. "Bud" Marshall, who held the job for 24 years before Mr. Williams beat him in 1986.
Takoma Park Mayor Stephen J. Del Giudice, a Democrat, appeared to have mounted a successful last-minute write-in campaign for the 2nd District County Council seat. His six-day campaign came after incumbent Anthony Cicoria was convicted last week of stealing campaign contributions and lying on state tax returns.
Although write-in ballots were not to be counted until later, Cicoria and J. Lee Ball Jr. a Republican disavowed by his party, had captured only a quarter of the vote, leaving Mr. Del Giudice the apparent winner.
"We're confident we're going to have a strong victory," Mr. Del Giudice said. It would be Maryland's first successful write-in campaign in a county or state race, state elections officials said.
Cicoria withdrew from the race, but too late for his name to be removed from the ballot. The Democratic Party threw its support to Mr. Del Giudice in an effort to defeat Mr. Ball and to avoid the embarrassment of re-electing Cicoria.
In another write-in effort, former state Sen. Tommie Broadwater Jr., who was convicted of food stamp fraud in 1983, failed again to defeat incumbent Sen. Decatur Trotter, who replaced him in 1983 and edged him in this year's primary.
Montgomery voters elected two new state senators, Democratic Delegates Mary H. Boergers and Patricia R. Sher.
The Montgomery ballot included four sometimes conflicting tax and spending charter amendments. Only Question F, which would cap property tax revenues at the rate of inflation, appeared likely to be approved. Voters rejected proposals to put a lower ceiling on property tax revenues; to limit the county property tax rate to its 1988 level; and to bar the county from spending money on projects the state is required to fund.
In Southern Maryland, state Sens. James C. Simpson, D-Charles, and Bernie Fowler, D-Calvert, easily won re-election.
Joyce L. Terhes, chairwoman of the Maryland Republican Party, was re-elected as a Calvert County commissioner.