However, I have contacted the Secretary of State office and it states on their website that there it is a one time filing/fee to form an LLC there.You will typically want the LLC setup where the asset is located. 

But I quickly realized that scaling one house at a time wasn’t the most efficient path to financial freedom.

Now I will give my opinion on buying a four plex verses building one. 

It is hard and will be a full time time job to do it right. 

Its a a matter of time until someone does it! 

One of the units is currently rented, so it would probably be great for a house hack.

When my youngest went to school, I changed my license status to Active, and have learned and enjoyed helping people buy/sell/invest for around 7 years now.Everyone's journey is different....you might one day no longer be a firefighter...you might move to another state....you might want to buy a house one day and having a real estate license could save you some money. 

One thing you will want to explore is the tax rate in the specific counties you are looking in.

Quote from @Chris Ganz: @Charles Carillo after the initial lease which was a yearly one was up, I switched it over to a month-to-month.

No reason to waste your time chasing the former PM around.