if you do 'choose' to give a {business} a try make sure you keep very good records, have everything written out, for any 'finished item' always get a deposit (I always get 50% deposit) before buying a single thing-or cutting a single piece of fabric--with the understanding that the balance is due upon completion= and the deposit is not refundable--since it is used to purchase the supplies needed to complete the project. there should be no surprises for the customer-if you find something that changes things part way through it is your responsibility to contact the customer right away and discuss it- whether it is needing more time, an increase in price, what ever the issue is- communication is very important. set realistic deadlines- if I am commissioned to make a quilt for someone I always (try) to allow myself at least a month longer than I really think I can get it done- customer's are happy when you call them & let them know their quilt is done faster than they thought it was going to be.
if you plan to long-arm quilt for your business- have samples to show, have set pricing- covering all types of quilting you offer- have policies and guidelines in place (and in writing) --- if you are going to do it as a business you need to treat it like a business...regular hours, regular rates, deadlines, services offered, records, taxes, a business plan, everything written out. this protects you as much as the customer and will help you have a positive outcome...but remember- you will not be 'making a living' at it from the beginning- it takes time to build a business.