Moving OS with a family- what to consider?

[meow]

My H has been slowly progressing through an interview process for a job in the US. He would love the the job but we've been unsure how we would make the whole thing work if he was successful, due to us having a baby due in November.

He has just started emailing a HR lady to discuss the logistics of the job- moving, expected salary etc before they consider flying him over for a final interview and she just said they would be happy to push out a start date to February next year at the latest. So our baby would be 3 months old then- suddenly it is all starting to feel in the realm of 'doable'.

But what now? What else should we consider? Who has made/considered such a move and what do you think is important?

Some considerations:
- This is not an expat job so we don't think it carries a high salary- we would need a salary that supports a family plus covers some of our mortgage back home

- Will have to organise renting out our house

- Is moving OS with an almost 3 year old and a 3 month old madness?