You should be familiar with FIRPTA... that is a tax withholding the escrow company will do in favor of IRS... you can search on that term, but is the only difference between a foreign and non-foreign buyer (and it only applies when you re-sell the property).
In terms of financing, there are US banks that will finance foreign nationals, but you have to establish a deposit base relationship with them... most of the international buyers I represent buy cash, but some of them finance... with the dollar being relatively low, and real estate prices also low, this is the time to buy!
let me know if I can be of further assistance
Ron Escobar, MBA
Select Real Estate
468 N Camden Dr #200
Beverly Hills, CA 90210