We have fixed mortgages that can be amortized for 30 years, but typically can only lock them in for 5 years maximum.

We've always been interested in investment properties and have been following BiggerPockets for many years now but never pulled the trigger.

I feel like I’m in a good place, but I have over $900k locked up in equity.

Or are you an introvert like to lock yourself in an office and review documents all day?

That conversion will not trigger any tax.Unfortunately we can no longer eliminate all of the tax simply by converting to a new primary and living there. 

Operating through an LLC can certainly provide some protection, but many mortgage companies include a "due on sale" clause in their contracts, which means transferring the property could technically trigger the need to pay off the mortgage. 

And it is only like 20 bucks/year like others mentioned so unless you plan on being locked in analysis paralysis for a year you will not even save that much...YES if you are buying turn key and plan on using property manager for everything. 

Just finished my major in Business Management and am receiving my Management and Supervision certificate this summer.I've been studying real estate for a few years now, have watched tons of videos, calculated and ran numbers on numerous properties and listings, and talked with many lenders and real estate agents, but because I don't have anyone in my circle that's well-experienced in REI's I've hesitated to pull the trigger on anything.I'm looking to fix and flip, BRRR, LTR, MTR, STR, or multi-family.

Can I include this to above statement in their leases or anything that would be giving me a right to simply throw their stuff or them out by changing the lock key codes and never have to worry about anything else?

Had you not locked up the 250k, you would not need cashflow to get you by in this situation.