We have a 68 bungalow that have varnished baseboards and trim not a really nice looking trim and no fancy profile Believe it is only fir wood. Would like to paint but not sure if paint will adhere to it. What steps must I take. Wood will split if removed from wall Will eventually replace but for now just want to freshen up
You should give it a sanding with fine sandpaper, to de-gloss it. Then wipe it down with mineral spirits, or better yet a liquid cleaner/de-glosser like this:
You might be able to get away with just the liquid prep if the varnish is not high gloss. Then paint with high quality paint and brushes. No primer necessary.