Equity loans on land are tough to come by and typically only would lend 50% +/- Ask your local lender/credit union would be the best bet

And Quickbooks is probably the most popular one 

3) For buyers that are adding multiple properties in the same year – STR’s have become more and more popular but the conventional lending world struggles to use STR income until it hits your tax returns.

You can also go to garage sales to buy popular items that will resell for more on ebay.

If you feel that you can succeed if you follow your plan, but you are procrastinating, I suggest working under someone like a different whole seller, and you job is to get deals, I bet you will start making deals happen because there is a boss on top of you that expects results, then after a few deals you can go and do it on your own, since you did it a few times (This is what I would have done in this situation) good luck.

As far as qualifying for the loan, your best bet is to talk to your lender and see what they need from you to get you approved. 

Take the example of Puerto Vallarta, which has been a popular vacation and retirement place for foreigners for decades.

The village is becoming more popular as well.

I have been looking in Destin, and down the gulf coast -but it seems like many of the popular beach towns don’t allow short term rentals.

If I were an out of state investor who wanted to get into short term rentals I'd be looking at popular vacation destinations.