The last big decision is how to apply the paint. Most pros use paint sprayers because they're fast, but in inexperienced hands a high-powered sprayer can leave drips, thin coats, and a mist that may land on many things other than your siding. If you do hire a painter who uses a sprayer, make sure he is meticulous about removing, covering, or masking off everything in the area that might get hit with overspray: gutters, roofs, windows, shrubbery, walkways, cars—you name it.
This painter Scot never came and finished the job. Texted me at 6:30 in the morning saying that he isn't able to do the job I gave him. I would not recommend this painter to anyone. I will make sure everyone I know won't use this guy. He is the worse business owner I have ever met. I don't know how he is in business. Be very careful of this guy Scot. Don't trust him and don't pay him for anything for any work.