I sold 1/8 of my properties, similar motivations, but I think overall Trump will be good for real estate

For mobile homes, it often depends on whether the property is considered real estate (attached to land) or personal property (if it’s not).

To thrive in real estate investing, you must maintain a firm grip on your finances.

Sometimes it's better to pay a bit more, for a real professional to handle your most important transaction. 

Then when the real owner of the credit card number found the charge, they did a charge back.

Separate from real property.

I'm going to reiterate what's already been mentioned above, but I'm going to actually give you examples of why it's relevant to you to find a U.S. tax professional.1 - You're going to need to file U.S. taxes once you have property down here, there's federal filings, state filings, and sometimes local filings too2 - Tons of tax treaties between the U.S. and Canada that are easy to miss and can cost you a lot of money (important one with rentals - effectively connected income - if the professional you talk to doesn't know what this is, run away)3 - The amount of days you spend in the U.S. needs to be tracked and if you go over a threshold, all of your worldwide income could be taxable by the U.S.4 - Selling real property means up to 15% of your sales proceeds might not be available to you for years (FIRPTA)5 - Lots of nuance at the state and local levels, which both want to take as much money from you as possibleMain takeaway here is that you should find a U.S. based tax person.

I've always wanted a quadplex but i dont own any real estate yet so i wanted to start with a SF.

Seller of said property is not willing to do terms.I go forth into the MLS or elsewhere and find a seller on any type of property willing to do the terms I want AND is ok with me selling their property and substitute the collateral with another real estate asset of same/more value.

Happy to discuss this further on what might make the most sense for your end goal.If you are renting right now and starting your path in real estate investing, as said above, I really do like the house hacking strategy for your situation.