Would I need to get my eyebrows shaved before laser tattoo removal?

I got the tattoos when I thought my hair wasn't going to grow back in but it did and now I want them removed. How necessary is it that they shave that hair off for the procedure? My hair is black, btw. Also, I've heard about the risk of damage to the hair follicles but I only want to shave the hair off if it's absolutely necessary (i.e. the risk is MUCH higher with hair covering the tattoos). Last but not least, I've heard the saline removal method isn't advised for people with dark skin. Is that true? Because I'd prefer that option but have medium-brown skin.

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