[gemy]

I'm not sure about why the concern about Lifting the leg; my understanding is that is pretty normal for male dogs to do.

I'm not clear if your vet is recommending neutering for your Yorkie or not?

but I have an un-neutered male BRT (which is a much larger dog than a Lab) and an un-neutered Yorkie male. Both co-exist peacefully in the house.

Are you planning on bringing in your Lab to the house? Is that your concern --- will the two males fight?

My Yorkie is much more apt to mark than my BRT, and BTW we have an intact female in the house too. Yorkie only marks when she is in heat; so he has belly bands once a year to wear. My male BRT doesn't and has never marked in thehouse, and nor have the two males ever gotten into "it" even with an intact, in heat female. I control the situation.