The interesting part came in meeting the tenant — I had to explain what a triple net lease is and show them they were way under market rent.

Make your numbers and triple check and have contingency plans. 

Columbia SC requires a permit to operate an STR and SC taxes nearly triple for non-owner occupied homes.

I’m seeking advice from anyone willing to share their insight.My ultimate goal is to become a limited partner, private lender, and owner of several triple-net retail spaces and residential apartment buildings, eventually working my way up to luxury apartment complexes with 500+ units.

Double - Triple check with local jurisdictions as the laws have been changing without notify the public or updating websites accurately. 

The property is triple-net leased with long-term tenants, including a major DoD contractor. 

If you are looking to double or triple in size in a 3 to 5 year period you will have to do something that scales at a faster rate than what you have done for 20 years.   

With its triple tax advantage pre-tax in, tax-free growth, tax-free out for medical expenses, it’s one of the most powerful accounts available.- Contribute beyond the match to your 401(k).

I want to try and double maybe triple my net worth and cashflow in next 10 years but do it on the conservative side not overleveraging property but by forcing appreciation by increasing margins and unit updates.   

Also, can you clarify if this is triple net lease or not?