The Montgomery County delegation to the General Assembly has approved a local bill that would reinstate a law giving renters the right to buy their building before it could be offered for sale to others.

The so-called right-of-first-refusal law was struck down by Maryland's Court of Appeals last November after landlords brought suit against the county, charging discrimination against owners of condominium property.

The law gave tenant organizations or the Housing Opportunities Commission 120 days to meet an owner's sale terms before an outside developer could buy the building.

The local bill, MC223, sponsored by Del. David Scull, a Democrat, must be approved by a majority of the Montgomery County senators before it can be introduced in the House.

In other action on local bills, the senators gave a favorable report to legislation that would extend the current 4 percent condominium-conversion tax to cooperative housing conversions. That bill, already approved by the local delegation, is now before the House Ways and Means Committee.

The senators approved a bill extending the hours liquor may be sold until 2 a.m., from the current 1 a.m., on Sundays preceding the following federal holidays: Washington's birthday, Memorial Day, Independence Day, Labor Day, Veterans Day and Christmas.

The senators killed a bill that would have ordered the state comptroller to withhold child-support payments with income taxes.