I'm thinking 7 years + to trade equity, 12-15 years for material wealth generation. 

It sounds like the ONLY benefit in this deal is the 0% carry-back and you are trading that for a reduced rental rate renting the property back to the family member.

It's a jack of all trades here with little to no trade offs/cons when comparing apples to apples to other large STR markets.The key to success here though comes in the knowledge and execution.

I have been the Jack of all trades in the real estate industry.

For example, a job with a builder will expose you to lots of things: land acquisition, new construction, renovation, trade experience and contracts, financing, permitting, etc.

I would highly recommend bringing in an advisor or broker with specific experience and knowledge in this asset class.I have seen many of these parks trade hands on a handshake and a dream, however, you could be taking a huge gamble if you don't get microscopic on the front end.

i have some trades i've worked with a few times and if i ask them for a rough estimate they'll provide it. 

This has created, since about 2016, an asset class of very limited MF properties in the Southeast that trade at unreal cap rates.

Section 162 prohibits deducting of educational expenses if they qualify you for a new trade or business.

I know meet GCs through trusted referrals or at trade shows.