You hav to be two years in business. Check with your accountant of attorney. I would start a NY LLC convert to the LA LLC as a merged entity into the NY thereby holding the earliest date. 7a requires 2 years in business as one its requirements. Then convert the LLC to a corporation in NY for lower annual reporting rate. For yourself check with an accountant or lawyer.

yes there is a way to change the address online. You have to sign up for a Missouri State account at https://www.sos.mo.gov then obtain your charter number. When you bring it up you can use the online dropdown for change of address.

There are telemedicine applications that allow for remote healthcare diagnosis, monitoring, and referrals. Also there are devises that can communicate when used by the patient for health reports to a physician. Like a devices that can monitor pain levels, blood pressure, heart rate, fever, etc.

You can always hire yourself to any business that is endorsed by a state. If you are a foreign resident there will still be tax requirements to the state of your llc and the IRS. Nothing prevents you from hiring yourself or anyone else you deem to give a job.

I am going to restate your questions so you can see how I am answering them. 1. You can always apply for a tax ID from the state of Missouri. Getting one sooner than later is important, because if not it may create issues later. Like if you miss your annual reports and become administratively dissolved and need to be placed in good standing again. 2. Never play with the dates. It becomes an integrity issue and will hurt your credibility. The earlier you start an organization lends to that organizations stability through longevity. 3. Deal with the IRS as soon as possible. Any delays will result in fees and interest for any outstanding taxes owed. Let's have a 30 min consult to see what will put you straight. I am not low cost. I do bring results and will be straight with you on cost and possibly show you a way to fund the assistance needed.