What is your definition of halter broke?
I'm in the process of selling some youngsters, and yesterday I had someone come along to see an 18 month old colt, to me he is halter broke.
I can catch him in the field, slip a halter on him, lead him up to the gate without any issue, get him through the gate, with him moving and standing wherever I need him to get him out and close the gate without letting anyone else out.
He stands tied, I can groom him and do his feet without issue.
I can lead him through strange obstacles, he will load on a trailer, just generally what I call halter broke.
Today I have someone coming to see an 8 month old colt, she asked if he was halter broke, and my answer was "kind of" I can usually catch him, but today I've put a halter on him just to make sure I get him when they turn up. He will lead, but still baulks sometimes, so I have to put pressure on him, or even pull him to one side to 'unstick' him. He does tie for short periods, but will pull back.
I explained this and the prospective purchaser still thinks he is halter broke....I still go for 'kind of'
Anyway long introduction to the question, what do you expect from a halter broke baby?