Let me ask a friend who is a higher up in the Clan MacLaren Society. He is a Lawson. I see Law and Lawson and I saw the Lair. I'll ask him if Lairson would be acceptable to the clan.

But in reality, how would you feel if you found out after you had spent the money on the MacLaren kilt that you were not of the person associated with MacLaren. Sept names are tricky. Though most societies would be willing to take your money, your ancestors may not have had anything to do with the clan.