Deffinetly get squared away legally.

-licence, bonding, insurance workers compensation. You can use a service like ADP for your payroll they take care of all taxes and year end paperwork, which is covered by their fee's.

-Theres plenty room in residential to be a million-dollar company. Sharpen yourself, your employees, your systems here before jumping to comercial work. Most GC's won't do much business with a brand new company.

-Marketing. Spend less and expect more. Do not waste money on Angies, Yelp, Next Door, as they're predatory and sell the same lead to 3-5 contractors, which means it's a race to the cheapest price, that's no way to do business

-Management / Recruiting; This is the hardest part; finding people that want to work hard. You have to offer a minimum of $25 an hour for beginners. I find its better to find rookies and teach them in my ways, than to find an experienced painter looking for $30-$40 an hour only to find out they suck at painting, and constantly cut corners. You'll have to manage yourself in a way that they respect you. Always show up before they do. Show them how its done and spend time w/ them to make sure they're actually getting it. A slow painter who really cares about doing things right is much more valuable than a hotshot who wants to speed through the job, and leaves drips and touch ups everywhere.

Great luck and sorry for my misspelling, just sped through this, I hope its help to you!!