If you are legally obligated by your state law which it sound like you are I would hire someone to clear sidewalks only. the gravel isn't in your lease and a tough shovel anyway.

In the event of a grease fire or flame flare-up, the device detects the high heat and automatically releases a fire-suppressing powder that smothers the flames within seconds — often before the fire can spread beyond the stove area.For landlords and property managers, this small investment can save thousands of dollars in potential property damage and reduce the risk of injury or displacement for residents.

What areas of FL are you in right now?

However, I would prefer not to remove the fire pit AND shovel all the pea gravel ti convert it back to grass...

I leave salt and a shovel out for one of my tenants.

Nowadays-  those lots are hard to find for $100-150K and shovel ready (those with utilities in place) can often ask $250K+ in prime areas with ocean views or access and they are increasingly few and far between and sell FAST - because they are worth at least a bitcoin or two..There are a lot of drivers of PNW coastal appreciation including; societal and environmental refuge and retreat,  generational wealth transfer, demand growth, invest-ability and maybe most importantly - location.

Comparing to Clearwater Beach, Largo and Seminole FL are usually better alternatives as investments.

While your rents might be higher, you need to also factor in - vacancy (how quickly you will occupy your units in between tenants), cost of refresh (painting, cleaning, etc) and how much responsibility yo have over utilities, I cant imagine having the MTR tenants cut the grass or shovel the snow. 

What does surprise me is that there's still an endless line of people wanting to buy on the advice of some shovel salesman.

Quote from @Matt John: I recently purchased a property in Houston for $100k cash and have secured permits to build a duplex, so the land is shovel-ready.