I’m in that market, I specialize in this sort of thing, I’m happy to give you my 2 cents.

I'm an agent and investor in Phoenix AZ specializing in flips and STR properties.

The downside is they usually come with higher interest rates and shorter loan terms.Partnerships or Co-signers: If your husband or a trusted partner has U.S. legal status and credit history, they might be able to co-sign or help with financing.Cash Purchases: Since you have savings in Canada, you might consider using that for your first property, especially for a smaller rehab project.Foreign National Loans: Some lenders specialize in providing loans for foreign nationals.

Promissory notes in general, as they have no collateral, seem a bit higher risk, perhaps mortgage note investing which are backed by residential and sometimes even commercial real estate would be a safer alternative, and yet very lucrative, too,  8-12% yieldsFor extra returns, I put a small portion of my portfolio into BDCs, Business development companies, that specialize in loaning money to growing businesses which are too high risk to get loans from proper banks.

If you were referring to credit cards stacking, that’s not a new option that needs a bunch of special maneuvering.

Quote from @Alvin Sylvain: I don't know of any special protection afforded you by placing the property in an LLC.

I specialize in identifying, negotiating, and investing in new construction homes.The main focus of my investment strategy is to negotiate the best possible deals on new homes in growing communities.

Some of my Scottsdale connections who specialize in land deals have been whispering about how a few smaller outfits in Casper.. from what I’ve heard, outfits tucked behind older storefronts, have been matching buyers with off-market parcels that never even hit the usual channels.If you line up your financing carefully (no legal or tax advice here, just speaking from experience), you can sometimes lock in a deal that ages nicely over tthe years.

My company specializes in higher-end flips in the Denver market, and we are looking to get into multifamily nationwide! 

I was in banking for a bajillion years and now own a lender that specializes in this type of financing, so I feel I can answer the question.