Will the title company put this property under our LLC name, and won’t be required to legally inform HUD/tax authorities. - will it influence property taxes once we move to conventional loan in 3 yrs? 

It is a tax write off.

I’ve read quite a few posts about foreign investor financing but most seem to deal with non-citizen investors without US credit or personal tax filings.

I'm looking at monthly cost to seller vs. anticipated rental income, purchase price relevant to the ARV of the area and interest rate, balloon, etc.

Again even if you have great credit as you start to add more credit cards, mortgages, auto loans to your credit you can also be viewed as "High risk" due to Excessive trade lines in credit or higher DTI - debt to income ratios. 

Look into a DSCR, Debt Service Coverage Ratio, loan where the rental income can be used to qualify the cash out refinance instead of your personal income.To Your Success! 

I have referred a loan out of state based on NOI, cap rate at purchase, room for increase income and purchase price vs market value.Maybe I didn’t articulate the intent of the post as clearly as I hopedFor anyone who has bought multi family out of state, “what are gives you the warm and fuzzies about a deal”:Obviously not cap rate, but maybe vacancy rate,  Cash on Cash ,GRM, IRR, Unlevered free cash flow, Cities over 250k?

Some are owned by my ROTH IRA and are making tax free cashflow.

How bad is the insurance, how high are the property taxes, is there an Hoa, etc etc. 

If you use a DSCR loan you could maximize the equity you could take out while still breaking even on the mortgage + taxes + insurance.