If the shingles blow off after 5 years, there may be no warranty.If the manufactures recommendation for the type of nails, number of nails, placement of nails and depth of nails is not followed exactly there may be no warranty.If the singles are laid over an existing set of shingles, there may be no warranty.If the manufacturers directions for the under layer are not followed exactly, there may be no warranty.If the, etc...And what makes the shingles "Not covered" by warranty does not seem to be spelled out very clearly in the warranty papers, but it's there if you know what to look for, and the shingle companies do not seem too keen to fulfill the warranty unless your install is "right on the button" with their requirements.

Additionally it can create liability to the buyers broker/agent because by answering questions from the seller looking for help because the flat fee company is nowhere to be found it can create IMPLIED AGENCY instead of a customer performing just ministerial acts.I do commercial but I have friends that do residential and they typically stay away from these types of listings.  

It's a rare industry that the vast majority of reviews aren't from their primary customer. 

So Rebecca had the idea to start a Training Cafe and offer à la carte coaching - not a guru class from A to Z, but just that one custom piece of local coaching when and where you need it.We believe the general information is already out there; free and readily available: here on BP, in form of many books and podcasts and at local meetups etc.

As a customer service thing, if I can make it all happen without the client knowing a damned thing about how we made it happen, that's not a bad thing. 

Don't let the customer between you and the door. 

@Charlie Chres Licensed professional contractors generally dont let the customer supply materials .

Logan Freeman got a lead from his consulting business, a customer of his had been a patron of the hardware store that occupied the building.

(No affiliation other than as customer)

I also have a customer of mine that is an investor, and have had a few lunch meetings with him.