Foreign National is generally ran through DSCR since it does not require income. 

Is court  involvement required?

Florida statute 713.08(5) requires a claim of lien be recorded within 90 days of last providing goods or services to the job. 

There is a delicate balance somewhere between keeping legislation strong enough to protect homeowners, while also not burdening the industry so much that people choose to do work illegally as you suggested, or take unnecessary time to deliver a finished project (and thus a home for somebody in this case).

Due to item 1, adding an ADU can require years to start achieving any return (once the accumulated cash flow recovers the initial negative position).4) Adding an ADU is a slow process.

I now require any animals brought onto the property for any length of time, even service and emotional support animals, to be registered with petscreening.com or otherwise verified through a third party, and if tenants or their guests are not happy with that, they can send the documentation directly to me (vaccination records for the animal and a doctor's note with medical license and clinician contact information be sent to me).

I'd purchase a second home and fulfill the loan requirement for stays etc.

Ie a property with 0 repairs required, then a house with small repairs, then a full remodel flip  that included adding and permitting new bathrooms, removal of walls, doors, windows etc etc. 

My bank requires $1,500 in each checking account at all times. 

Creditors and lenders are not required by law to report to credit bureaus.