I'd call the police and let them deal with the gun.

Tenant filed a police and animal control report after the bite incident, which dog's owner claims did not occur.Tenant is elderly, pays on time, keeps rental clean and well maintained but in general is not liked by neighbors, is a demanding tenant and many of them have had "relationship issues" with her.I have followed up with renter in the past to outline that per contract, we expect tenants to maintain peaceful relationships with neighbors and to work through any conflict in a productive ways, but I can't control what either party does and the complains are subjective. 

Seasoned or new, you'll have your work cut out for you; it's not for the faint of heart.One of my first purchases on a multi-unit complex in a rough neighborhood, for example, involved working with the local police to remove drug dealers who had taken over the building to run their operations.

Not only is it on lockdown (so less visitors), but because of budget shortfalls they just approved a property tax hike of 34%. https://www.tennessean.com/story/news/politics/2020/06/17/nashville-approves-new-budget-34-percent-tax-hike-increase-funds-police-schools/3200993001/As others have said, a lot of areas are doing great for STRs right now, particularly places that are away from the masses.

Pulling up crime stats in a city like Memphis may not help a lot since it typically gets reported by zip code which in Memphis are large areas due to our low density and our police department tends to report better than many cities so ours can look worse than other comparably sized cities.

Also, the local police will often drive through on their patrols if you give them a gate code

As such, if the subject’s market is experiencing significant growth with little to no new apartment inventory being built or in an area where local or polical opposition would prevent new construction.

Room rentals are not necessarily going to draw the cream of the crop as far as tenants go, butyou don't need Cut throat Charlie sleeping 10 feet down the hall with his huge butchers knife.Just one of many: https://www.reviewjournal.com/crime/stabbings/roommate-argument-led-to-stabbing-las-vegas-police-say-1530454/Good Luck!

That only got worse over time and eventually I had to call the police on him as he got violent with me.Given your situation, is sounds possible there there may have been some disagreements and thus the landlord wanting you to leave. 

@Katie Miller After 21 years I retired from the New York City police department in 2012.