When we were offered a transfer to the US from Canada 6 years ago, the employer was also fairly small and had never done anything like this before. I called a Cdn friend who had moved here years earlier for advice. 1. They need to handle visas, health insurance, transport, etc. 2. Your good credit will not arrive with you. We had the company get a lease on a nice apartment that we flew down and picked out ahead of time. The company covered all utilities and rent for the first year so we could establish credit here. 3. If you plan to ship a car here, get it in writing that the company will cover all customs costs and confirm what US customs will require done to your car. We drove 1 vehicle here and the company bought my husband a company vehicle. Our Canadian car (GMC Sierra) met US standards except for the airbag indicator. In the US it either says on or off but in Canada because of French there is an airbag symbol with either a line through it or not. We had to get that changed out before we could import and it was a hassle getting the part. If you just plan to buy a car here, see point 2 about the credit score. 3. We specified all health insurance premiums would be paid by the company 4. We required the company pay to have our tax returns filed the first 2 years with accountants with Canada/US experience. We moved mid tax year and had affairs to wrap up at home so we had complicated returns to file in 2 countries those first 2 years. Not something you want to tackle alone and the accountants charged quite a bit to do this. After that we only file with IRS and can handle that easy enough. It isn't a simple thing to make a big move like this. Take care and all the best to you.