If you used the refinance proceeds to buy a new car and pay for a trip to Disney World, then the mortgage interest is a non-deductible personal expense.

With the signed letter from her, will LTB agree that her rent is $650, and can we evict her due to non-payment of rent?

Here are a few links to help you out. https://www.ada.gov/service_animals_2010.htmhttps://adata.org/publication/service-animals-booklethttp://www.humanesociety.org/animals/resources/tips/assistance-animals-tenants-rights.htmlhttps://www.biggerpockets.com/renewsblog/2015/03/11/emotional-support-animals-waiver-no-petpolicieslaw-say/

There was public comment yesterday (here's blog post on the city website)https://www.evansvillegov.org/city/department/division.php?

It's a slower process building your business credit reports for non PG credit.

@Matthew WardYou are correct - Florida does not have an income tax on individuals.If you operate out of state - a portion of your income may be sourced to a different state.You may be required to file a non-resident state return in that state.The Federal tax return reports income that you earned from worldwide sources.

If the tenant "abandons" the unit based upon facts (no notice in writing, but all non-trash personal property removed, utility changed billing, , etc.), I advise writing a "Notice of Abandonment" letter to the tenant that is mailed and emailed to last known address. 

The more complex to construct or non-standard finishes = more money. 

I think this is your public expert in FL.... http://buyingtaxdeeds.com/  The national road shows in my opinion are not really helpful.  

More often than not, the property situation is public information but it hasn't yet been listed.