I recently repainted some night stands using benjamin moore advanced paint. They look great, except that I noticed some debris on the top and removed it with tweezers. I attempted to smooth over it with a brush, but the paint had already started to dry. So, there's a slight mar to my finish in a few places. Can I lightly sand that area, and just put a very light coat on top? Or, am I stuck with a light sand and repainting the entire top?
You didn't say how large the entire top was. Over brush snagging looks terrible, unfortunately. If you really want a smooth consistant finish, don't attempt to just touch up the flaw areas. I would sand the top again, making sure the snags are very smooth, then put a thin coat on the entire top. Dust control is the key to doing furniture. If there is minor dust on the finish, leave it alone until the piece is cured completely. You can then buff if with a polish compound or ultra fine automotive finishing paper that won't scratch the gloss, but will remove minor dust flaws.