You dont really want to have to PAY somebody to do this simple little job, do ya? (besides, not everybody who has a 'gunsmith' shingle knows how to work on Handi's)
Meanwhile, as it is an old model it may actually be dry inside. Try spraying a LITTLE lube in there. If you cock it (unloaded, of course) and hold the hammer back you can direct some spray down into the notch and sear area. Ive even used can gunoil by dripping some on the inside face of the hammer and holding the action so it can flow down into that notch by letting it flow and rotating the action. (it helps to visualize the hammer and notch and just where you are trying to get oil to go since it is out of sight). Once some oil is down there settle the trigger/sear into place and 'work' the parts to get oil on both surfaces.
The nice thing about the older models is that the actual burnishing of the parts into each other has likely taken place and all you really have to do is get some suitable lube on them. If the above doesnt help much and you have to knock it apart I recommend using automotive anti-seize compound on the notch and sear with NO stoning of the parts at all. Just disassemble, clean and dry, anti-seize on the notch and sear ONLY, oil the pin holes in the hammer and trigger, etc. and reassemble. This usually results in at least a 50% improvement in the trigger pull.
