Last week another storm comes along and knocks out power for 2.5 days and no generator.  

4 - What would you estimate for average monthly power, gas, water, and trash (I know, this is going to be a wide range depending on # of occupants, climate sensitivity factors, etc)?

That means you are paying back money that has less buying power than the money you borrowed. 

Then the delivery guy couldn’t restart the furnace and told him there was no power to it but it wasn’t the breaker.

If the judge determines you're a terrible landlord and have done wrong, trust me, you WILL be put out of business in a hurry, AND IT WILL HURT.Stop thinking you're a big baddie with all the power in the world because you're a landlord.

The town also had few rentals available, and all the neighbors are homeowners utilizing landscapers to care for the lawns, all neatly mowed, edged, besides having spring cleaning, mulched, etc.

My main concern is that I would have to find local housekeeping and maintenance folks and coordinate cleanings/fixes between checkouts or if the guests have any concerns while they are there.

I had one unit that we just cleaned up and put new appliances in and got $200 more in rent. 

You should talk to an attorney and clean up your lease.

No pet deposit but a clause to acknowledge any new damage caused by pet would be paid for by Tenant, like any other leasee, must clean up common areas of pet fur and usual pet clauses.