We've done a few of these, but try to avoid them. The ones we've gotten have been by customers contacting us directly (e.g. by finding us online). We did them more in my early years - both because we needed more biz and also because I didn't realize the potential issues.
In general, the customers that use LL are not our target customer. They is very price sensitive and don't care about quality...and ironically think that they got a good deal.
The milling of the LL products are very poor and that creates all sorts of issues and doesn't set my guys up for success. Also, I've had plenty of people that already bought the product...and of course got the wrong type. I hate delivering bad news like this.
They tend to also attract more people in apartments w/ concrete subfloors, and inevitably there are more issues there (vs. plywood subfloors) w/ all sorts of leveling issues that the customers don't realize and don't want to pay for.
We do not put a warranty on LL installations as their product is so bad. Usually, we try to avoid them now, but sometimes I find someone at my office didn't screen so well.
Thankfully, we are so busy now due to our online presence, Angie's List and repeat customers. (Oh, and BTW, low repeat rates w/ LL customers). I'd focus on other lead sources if you can.
Debbie Gartner aka The Flooring Girlhttp://TheFlooringGirl.com