1. will you be living and working in the US?
2. Do you have US citizenship?
3. If not will you be in the US on a visa and what visa?
4. or are you trying to buy as a foriegn national?
You know the weather is similar here to where you are right? I joke as I am from the UK originally and absolutely love it here.
You may have some challenges for buying a property. Banks and financial institutions will need you to show residency, income, credit history and down payment ability. I have some very good lending contacts and can share with you if that would help.
I am in Western MA, which part are you interested in moving too?
The only difference between a UK resident and a US resident is that you are required to have a 20 % down payment. You will need to meet all the rest of the banks criteria like any US resident . There are many reputable mortgage brokers that can walk you the process.