Ask HN: One-off product counsel for startups

Hi,

I have a question: let's say I want to examine the legality of one of the ideas that I have or one specific tactics that I want to use or one specific feature that I am thinking about implementing. Is there any effective way to seek legal counsel and tailored advice for such one-off issues (probably a 1 hour meeting)? Something that doesn't need hiring a firm or paying retainer? How do you approach such cases? Is there any website I should know about?

I have already looked up "legal consultation services". The results tend to be suitable for small businesses or corporate formation, trademark, ... I can't for example find a way to ask questions about compliance with child advertisement regulations