When I first started I went to my local Chamber meetings every single month. I also went to the local realtor association and the monthly home tour. I also have belonged to a leads group which meets every Tuesday AM at 7.
As for the Chamber and realtor association, you won't get business from day one but if you stick it out and get involved by simply talking to others and being friendly the business will come. I have a ton of contacts now from both these groups, and most all of them came over time.
Along with the realtor association I would hit their offices with fliers. Guys don't like doing this but it works. All it takes is one conversation with the right realtor and the leads are endless.
My leads group also has been huge, referrals from other service people like plumbers, painters, handymen, water guy, are awesome. also an appraiser and realtor!