I have heard that a lawyer would say that if the customer does not know you are a LLC, you may lose the protection.
Perhaps, that's so, but how would someone be a customer, if they didn't get a quote, letter, invoice or something which DOES have your legal name on it ??
Besides, someone walking down the pavement trips over a tree root on your property, I'm sure after the first letter is sent, they'll know.
Many years ago, we had a deadbeat customer who had no mention of being LLC, so after we took all the measures to collect this way or that, we filed suit against him. We found out we couldn't sue him, as his business [LLC] was filing bankruptcy. The district magistrate, told us for a small extra fee, we could file against his business and also him personally. So, we did. Of all the many people suing this guy, we were the only ones that paid the extra amount. Everyone said, you're dumb, that's stupid, never heard of that.......... It finally went to court and all those other guys lost everything he owed them, but our suit stuck. He actually went to jail because of us. He had the best defense attorney the area has/had. We had no attorney. Like I said, he went to jail and when he met parole, he hadda wear an ankle braclet, until we got paid off in full. All total with court costs, merchandise and added expenses, it was about $7,000. It took 3 or 4 years for him to pay it off, but everytime we saw this guy, we'd just think, for the extra $130 or whatever, which we got back, too..... it was worth to make this deadbeat pay.
The thing is..... you can't purposely commit fraud and other stuff and get away with it, hiding behind something like an LLC or corporation. The law is on the side of the innocent, sometimes, if you pay attention.