Canadian investing in Florida

[InYoung Choung]

Hello,

My family is in the process of moving to Florida from Canada.
We are planning to buy the first investment property (multi unit - house hacking). 

If I am not mistaken, first, we need to get US credit cards with local banks to build credit scores. As far as I know, Canadian credit scores don't mean anything in the US and we need to start from zero. (My husband and I have both over 800 credit scores in Canada). I had done some research to get credit cards overseas using US resident's address, but I had decided not to go that route.

second, we will need to have W2 income jobs to show proof of employment. (not sure if it's 100% necessary as long as we have some cash in hand)

Is there any advice for foreigners to invest in the US..?