* Del. Gene W. Counihan (D-Gaithersburg) filed legislation to establish regional small-business assistance centers, one of which would serve Montgomery and Prince George's counties. The proposal has been defeated two years in a row, but Counihan hopes that some of Maryland's projected $47 million budget surplus will help fund the centers.
* Montgomery legislators will lead efforts to add one judge to the county's 12-member Circuit Court bench. Delegation leaders also hope to win funding to begin the $5 million renovation to the old District Court building in Rockville.
* Del. Joseph E. Owens (D-Wheaton) leads county lawmakers who are expected to fight a proposed constitutional amendment that would allow the state to assume funding of court clerk offices. Montgomery is one of two Maryland jurisdictions where those offices operate without a deficit.
* Sen. Laurence Levitan (D-Potomac) is sponsoring a measure to allow senior citizens to deduct some Social Security benefits from the reportable portion of their taxable income. Levitan also is proposing a so-called "chickadee check-off" allowing tax deductions for contributions to save endangered species or clean up the Chesapeake Bay.
* Montgomery lawmakers are sponsoring a bill to allow a voter referendum on whether to elect the county school board by district, rather than the current at-large system.
* Legislators also hope to prevent a $1.2 million loss in local hotel fees through a proposal granting Rockville, Gaithersburg and other municipalities the power to levy hotel/motel taxes.
* Montgomery also hopes to restructure county sheriff fees and District Court security costs. The latter are now more than $16 an hour, and the state reimburses the county for about half of that amount.
* The county, which has authority to issue $45 million in industrial revenue bonds, will oppose efforts to reduce its mortgage bond-issuing authority, which officials said is crucial to continued economic growth.
* Local lawmakers may also seek a permanent state subsidy for the expanding Ride-On bus system, now funded through 1986 with a $3 million grant. With no long-term state financing, the bus line will remain a "hostage" of the state, officials said.
* Sen. Stewart Bainum Jr. and Del. Diane Kirchenbauer, both Silver Spring Democrats, filed legislation to give the city of Takoma Park independent zoning authority. Another bill, certain to be opposed by Prince George's lawmakers, would allow a vote on whether city boundaries should be redrawn to place Takoma Park wholly within either Montgomery or Prince George's County.