Even with my income, most of my money goes to taxes.

Tell the buyer to come up with more money down 

Fannie Mae or Freddie Mac won't touch them.Many buildings allow STR because they realize there are a lot of out-of-state and foreign national buyers wanting to place their money in the Miami real estate market because it is such a good investment.

Thank you in advance for your help and support!

And ideally sell it 4 years later.If I can more or less count on the renting of additional bedrooms to cover the running costs of the house, I'm really only looking at taking a hit on the buying/selling costs - which SHOULD be lower than what it would cost to house him in dorms for 4 years.I feel like this is pretty obvious and easy (not trying to make significant money here, just thinking I could save $10-$20k on housing costs over 4 years).

I had finally landed a great job making great money but still barely getting by.

Advertising for vacancies is great - it syndicates across many platforms.It can be a little clunky and hard to learn for some things, but their customer support is excellent. 

I will certainly be doing my best to actually figure out where she moved to be able to make the new landlord aware.Thanks again for all the help and support....much appreciated.

So every year you do not compensate by raising rents, you are losing money.

If you have $100,000 in your brokerage account to borrow against, why not just use the money and secure a traditional loan, versus gambling with an unknown and variable future rate?