No longer do you have to live by a beach or other tourist attraction to capitalize on STR.And lastly, this one is a huge stretch as its not really real estate but we rented out a Motorhome for several years to offset our cost of ownership. 

So, what I am considering instead is to make him a partner in the property after graduation, and base his percent ownership on the percent that he has paid into the property while living in it.

If you're working with a qualified sponsor, you can definitely get 30% of the ownership for the GP.Never guarantee anything, unless somebody is willing to pay it out of pocket in a worst case scenario. 

I'd focus more on investment options that don't involve direct ownership of RE for the time being.

We would have 1/3, even ownership of property.I was curious as to how others have done this.

For example 3 partners who each buy an equal share of a triplex with individual mortgages (ie fractional ownership), and then each of them occupy a unit.

Property ownership is updated pretty fast where phone numbers are tied to old properties.

Next time, try to pay close attention to ownership rates, household incomes, and unemployment alongside crime rates in the area. 

I ask because im really trying to speed up my investing process with cash flow and hustle to do so by putting a second Duplex (there will be 2 built at same time) in my girlfriends name and ill fund it and then transfer ownership after the 1 year requirements are up, but so i don't have a empty unit (One she's "living in") I would airbnb it so theres no leases where i could legally get into trouble.

@Jeremy Martin the Sec 121 exemption you're referring to actually requires that you meet two tests: the use test and the ownership test.