I agree that you want to exercise caution with financial relationships over the internet. That said, there are some issues worth addressing. One that would be foremost for me is whether to become a citizen of a different state for tax purposes. I am not talking about a sham of some sort. I'm sure the topic is on various boards and blogs. You can begin by using a search engine.
For example: "Seven U.S. states currently don't have an income tax:
Alaska,
Florida,
Nevada,
South Dakota,
Texas, Washington and
Wyoming. And residents of New Hampshire and
Tennessee are also spared from handing over an extra chunk of their paycheck on April 15, though they do pay tax on dividends and income from investments." I didn't check to see why some are in bold.
A search will generate vast results. One you'll notice is that most states without income taxes, make up for it with high sales or property taxes. But if you are
fulltiming, those may not impact much. Would you really have to spend much time in Alaska or Wyoming? Do your homework, but beyond getting a driver's
license and establishing a residence/mailing address (such as The UPS Store) maybe not much. Look for best places to retire articles and posts on sites like this. Good luck. I hope to do similar.
PS, once you establish your strategy, you may want to consider tax software like Turbotax or H&R Block. I don't know your situation, but they make it so easy. The way to prove this is to use both a professional, and software, then compare. Also, there are many good low cost brokers with offices everywhere and online presence. I could give many reasons why I am a Schwab fan.