Planning on increasing my daily budget to probably $25/day and maybe adding in another state for $10-$20/day too.

If you generate enough money annually to dismiss a W2, then consider covering the ever increasing costs of retirement & health care and those do not go at inflation metrics but usually way higher. 

People have failed twice now with the housing bubble and the recent meteoric increase in rates because they were gambling with the rates to save a percentage point.  

We plan to remove them all to protect from tax increases on our current primary, but I am afraid that now that the other properties won't have homesteads, we may see skyrocketing tax bills and it will eat into already small cash flow from rental income.Does anyone have advice for how to handle this situation other than just increasing rent?

What is great about teak is wild teak is drastically diminishing while the demand is increasing.

They may also require US credit history, although there are a handful that will not require a US credit report for an increased rate/ reduction in LTV. 

If you see utilities increasing, is there a way that you can push this on to the tenant?

I will mention that a hot tub could really increase the frequency of bookings. 

What would you do from here, pay them off sooner to increase the cash flow, or keep leveraging? 

It establishes a base that's $40 lower, which all future rent increases are based on.