You're small retard. Don't do any of that shit. In fact, offer to take cash everytime.
I work in construction btw. People dodge the law left and right, just don't do anything that could leave a trail.
Also, depending on your area, hire Mexicans. If they have a family, they will not steal so look for that. Be willing to pay $2/hr extra for a man with a family, trust me you won't regret it.
Make it very clear that there is room for raises after their 2nd-3rd month if you have a good employee, never late, never slacking on the job, etc...
If my business didn't have 2 hard workers that don't slack, I'd be nowhere close to where I am today. Invest in your employees, and maintain you authority. They will understand. Remember this is a business, not a music festival, so don't go overboard listening to the radio all day.
I brought in over 700K last year.
Some tips about liabilities etc...
1. Don't get insurance for your business. Get workman's comp. Use a CPA to do the accounting related stuff, you will save a lot on taxes, preferably one that is willing to loosely interpret laws (i.e. your new car can be a business expense, etc..), hardest working guys are in their 30s and 40s generally. The younger ones in their 20s always are hungry and looking to start their own business. They will bounce as soon as you start to get big and try and set up shop on their own. As far as training plans, don't hire people that haven't worked in construction.
General stuff,
Spread business cards like wildfire, every new person you talk to (maybe not people's wives lol), introduce yourself and give them a business card, it will become more casual over time.
Start work early. You are ready to go at 7AM. You can leave at 5-6PM. This shows you're willing to put the work. Your image is more important than you think.
You probably know most of shit already, and I don't work as a tiler specifically, but good luck.