What is a 5 year fixed rate mortgage going for in the US?

I think you're asking for the wrong thing.. I think your referring to a 5/1 ARM, which is fixed for 5 years and then adjusts every year after that.. Very, Very few lenders here in the US are lending to foreign buyers... there are some, but very few, and you certainly won't get an accurate quote by posting a question on an internet blog.. The best advice I can give you is to contact a LOCAL mortgage broker in the area you are considering, not the local "Big" bank, and certainly not one of those 50 states internet lenders...By applying with your LOCAL Broker, you have an advantage because he's familiar with local customs and works with numerous lenders, seeking out the best loan terms for your particular scenario. Because he has lower overhead, he can offer you lower rates and lower fees than most of the larger lenders.. I'm a Broker here in Scottsdale AZ and I only lend in Arizona. If you or someone you know is looking for financing options, feel free to contact me or pass along my information. 480-287-5714 WilliamAcres.com

As already stated, you'll probably need to find a Canadian institution that will lend on foreign investments, unless you're planning to move to the U.S. on a long-term work visa, etc., or as a permanent resident alien. The key is to have a Social Security Number; there are very few lenders offering loans these days to people with Immigrant Tax Identification Numbers (ITIN). I know any of it can be done, though, there are several Canadian citizens living/working here in my area; I've occasionally seen one Canadian bank doing new construction business here with builders, so it's probably a good place to start...I think it's name is The Royal Bank of Canada, or something like that. Best of luck to you!