"Possibilities for funding". They are probably referring to what is known at US law schools as financial aid. English students, (coming from a developed country) who apply for this at the top institutions do not fare too well as it is not on merit but on need. US law schools expect you to borrow large sums of money to attend. Considering the average British student loan (ie debt) is low compared to the debt many US students are in and considering the ineligibility for Federal aid and the high cost of British housing (this along with parental income is considered) means that you are unlikely to get a substantial amount. If however you are prepared to go to a third tier law school you may get considerable merit aid- but this is mainly for JDs, those wishing to do LLMs tend to get much less.
Having compared people's financial aid offers at one particular Ivy league institution you are on average going to get around $10,000.
“Actually I should ask for PDJM's help with my brief on the Airline Deregulation Act 1978”
LauraWalker, you’ll probably find this is out of my limited area of expertise, (if any expertise exists in the first place)! Feel free to PM about it though, but I fear that it will be you who will be helping/teaching me about this!