As long as you don't get small particles of lead paint in the air it's good. Adam Smith (the board owner) used Citrasolv to strip the paint of a Tbolt he restored. He brushed it on, left it to work, and then wiped it off. I don't know how many times he had to apply it.
A pressure washer is absolutely no good because you're scattering the stuff everywhere. Ingesting it is as bad as breathing it.
Wear rubber gloves and do the work wet on top of a dropcloth. Wash yourself thoroughly before eating, drinking, or smoking. Wear old clothes just to do this and then throw them away when the project is done, unless you can get a Tyvek suit somewhere.
Anything you strip off should be saved in an old paint can or something similar and taken to your next household hazardous waste day. Call your town dump to find out when the next one is.
Lead paint stopped being used in the early '70s or so, so anything older is likely to have it. The only way to know would be to have it tested, and it's probably easier and cheaper just to assume it is. Lead poisoning is serious business, especially the younger you are. It affects your kidneys, reproductive system, and nervous system. Chromium is found in a lot of paints and that's no fun, either; the precautions are the same.