I see 3-5 as a fad.Fractional ownership - way to much overhead for these to be profitable. think "timeshare".STR in non traditional markets - running a STR is a business and real estate, boils down to location location location - who would want to go to a conference and stay in a STR vs. the hotel where the conference is at, most businesses pay for this I do not see why.Mixed use with green - this has been going on for years- it will continue but it is also more expensive to build - which means higher costs to use.Not trying to be debbie downer, I have seen these attempted to be done in the past and they really have not been successful.I do really like the BTR model though as I continue to see that as a very good option in the future. 

He walked away from his business letting his best friend take it over.  

My husband is in the construction business and I am a W2 employee.

@Will Jones, we are in the process of putting an offer on a piece of land in where we will build a building for one of my businesses and then lease out the rest of the space.  

Michael,   A good book to purchase is "Professional Real Estate Development: The ULI guide to Business.   

Golf course is a tough business with dwindling  play .. think the rise of Top golf and pickle ball.. :)Also if you look at federal forest ownership maps you will see that Huge areas are checker boarded with private ownership .

Nowadays many vacation homes are priced as STR businesses with profits baked into the price (with future guests expecting instagram furnishings).  

For us we all typically use 0% business credit cards to furnish the property which can amount to $40-$60k+ depending on how crazy you go. 

Quote from @Hermes Kanaris: I appreciate all the replys guys, everything i read on here is so helpful since im new to this business.

It's just old school working capital management that most businesses have been using for 100+ years.