If $50k is all of your savings, I would think that you may want to keep at least a portion of that as an "emergency fund" and take the rest to invest.

The residential rental registration or residential rental license shall include the following information:(1) The name, mailing address and telephone number of the owner, operator, responsible agent or manager.(2) The evenings and hours on which garbage and recycling are to be placed curbside for collection.(3) The telephone number to call to register complaints regarding the physical condition of the residential rental unit.(4) The telephone number for emergency police, fire and medical services.(5) The date of expiration of the residential rental license.(6) A summary of the owner's and occupant's duties under this Part.

That way it is never an emergency.

Call their emergency numbers from their application.

Let them know you are the new owner, how they can/should contact you for maintenance or other issues, tell them how they can pay, and set some basic boundaries (e.g. only call/text if it's an emergency).I recommend keeping them on month-to-month leases for 3-6 months while you get your footing and see how they are as tenants.

@Richard Quijano, Only if the president has declared a state of emergency. 

I panicked, called my plumber and said ITS AN EMERGENCY!!!

Hello all, I'm doing a flip in Palm Harbor and the plumber that I usually rely on has had a family emergency and will be out of town for a duration of time.

.+ Expand our partnerships with other emerging operators.

I wanted the doorbell in case they need to contact me in case of an emergency without a phone and/service.