Where to go from here? From reading all the responses, here is a suggestion. I agree with Mike Null 100%. Learn CorelDraw. It is your main interface to both your finished laser work as well as your dye sub final graphic. I would sign up with JDS Industries as a dealer so you have access to their CorelDraw templates for plaques and other awards. (Note: You'll need your Tax ID to sign up.) I would import them to your computer system and try laying out some designs.
I would look at sample plaques (the artwork) from JDS, Tropar, and other sites. Try to duplicate them using the CorelDraw templates. Make some designs for dye sub. Make a plaque with graphics such as a photo or some artwork. Heck, go with mytransfersource.com and have Ron make you some transfers. He is a heck of a resource. Use him. See if your "competitor" will allow you to test drive their heat press (at your place) and make some samples. Buy some blank dye sub plaque plates. Use your transfers and make some samples. (Tell Ron what you are transferring and he will make sure to reverse the image if it is needed).
This assignment will help you get good at CorelDraw and also get some transfers at a decent cost, and then make some samples. When you get good at dye sub, make a sample pack of school items. You mentioned multiple middle schools. Make some dye sub mouse pads, clipboards, award plaques, bookmarks, seat cushions, and other items using the school logo. Make some name tags with the school logo. Download the logo from the school website. It will probably be low-resolution. You can have someone here convert it to a vector format (at a small nominal charge) or get Sir William to do it - another good source to know.
Send the package to the school with a letter stating you will contact them in a few days to meet with them to discuss some possible fundraising. Instead of fundraising they may be interested in purchasing some of your sample items in large quantities. Whether you make a lot of sales or not, it gets your name to them and it helps you learn how to produce these items. It's good training!
You have to learn CorelDraw. Learn to cut-and-paste, manipulate the artwork, putting text on a curve, power clipping, etc. Lots to learn and it's amazing how many simple tasks we all do was once a complicated thing to learn!
Also, one other thing. Going LLC involves more paperwork than you probably need to deal with. I would consider going the Sole Proprietorship route. Less paperwork. Less costly, too. At least starting out this seems to be a better route.
I hope this helps. It gives you something tangible to do right now without the financial outlay. A few bucks for transfers and some bucks for dye sub blanks from JDS or other dye sub supplier. Go buy a heating press or at least see if the competitor will let you have it for a week or so to test drive. Did I mention learn CoreldRAW!?!