I'm confused, Yorkie. I can hear neither the word "liars" nor "lawyers" in Chris Willett’s version. Can you please quote the full line or verse?

In Ord, Bothy Songs and Ballads, the fourth verse is

Some say that I am rakish. some say that I am wild,
And some say I am guilty fair maids to beguile.
But I'll prove them all liars if she'll go along with me
To the plains of America, my darling to be.

But the last verse of Chris Willett's is

Now some says I am rakish while another says I am wild,
Oh, and some says I am guilty pretty girls to beguile.
In the middle of the ocean there should grow a myrtle tree
To maintain my own darling that’s a long way from home.