@Tayvion Payton to get a better understanding of the loan products, it's best to have a conversation with a commercial loan officer at a local community bank or credit union.On commercial, the number one rule is a deal meeting their DSCR loan covenant, which is typically 1.2 to 1.25. 

However as Texas only allows a HELOC on your Primary Residence, I don’t want to lose this facility if I move to a new place (and I want to comply with the rules!).

I'm still in reconnaissance mode... so need to collect as much information and knowledge as possible before deciding what to do.  20-80 is more of a rule of thumb and not a "magical" ratio.

Co-ops often come with stricter rules, so a condo might be better for short-term ownership. 

Metrics and local zoning rules and regulation awareness is the key.  

The rules are the same for everyone.

I’ve edited this version to comply with the rules and removed any references that could be perceived as self-promotion.

I want to create a GMB profile for a market I invest in, but I don’t have a physical office address in that state.I’ve been looking into virtual address services like iPostal1, but I’m concerned it won’t be approved by Google since they seem to have strict rules about virtual or P.O. box-style addresses.

Most foreign buyers are high net worth individuals who want to park their money there in a safe haven and they don't need BP.No restrictions apply to American buyers in the countries they'd generally want to buy, including those mentioned by Federico and many other popular countries.When it comes to Spain specifically, some more conservative banks will ask you for a 40% downpayment (that would be the maximum) but that isn't the rule.

And if you’re listing the house online, try platforms like LoopNet or local Facebook groups for real estate or community housing.Just make sure to do your homework and ask for references, check their track record, and make sure they’re following any local zoning or licensing rules.