Maybe not anymore, for now: https://natlawreview.com/article/texas-federal-court-issues-nationwide-injunction-against-enforcement-corporate

I feel like in today’s day in age there are so many tools for STR operations and I cannot believe there is no integration for a merchant of sale transaction or some kind of financial app/ software that can take the remitted taxes and pay them to the government automatically.

You’re just throwing money at the government. 

The interest on the rental is an offset to rental income, and is by definition deducted from your taxes.A 4% interest rate on a primary is like a 4.88% after rate for a taxpayer in the 22% federal tax bracket, or higher if in a state with state income taxes. 

https://natlawreview.com/article/texas-federal-court-issues-nationwide-injunction-against-enforcement-corporate“We note this is a preliminary injunction, and we urge reporting companies to pay attention for additional updates and proceedings in this and other cases which could modify or change this order.”

Flatline population growth is a sign of a poorly managed state and large or soon to be large, government debts (e.g., Illinois).

However, the group you get money to do that from is either government grants or targeted charities because it isn't investors.

The government of Costa Rica has a policy to limit development and doesn't invest much in infrastructure to bring tourism.

An LLC doesn't make a difference in your federal taxes or what you can deduct.What you want to do is technically possible, but there are several hurdles. 

The human race has historically been poor at predicting future, so it's wise to prepare for multiple scenarios.Mortgage rates in 2025 may decrease slightly if inflation stabilizes and the Federal Reserve eases rates, though they are unlikely to return to pre-pandemic lows.