IF it is managed well and in an area that has demand, the AirBnB model should generate more money.

Currently a good majority of markets have high demand and low supply so you may see things like bidding wars.

Loan Private Money-If you are leaning more towards the idea of saving up and waiting till that 2-year window is closed, becoming a private money lender will give you the knowledge and a substantial return on your investment for when that time comes. 

Due to the demand, most banks and lenders offer this type of financing.

Even if there is a monthly or quarterly lease payment, you cannot simply demand they now pay you.

That said, you are still currently allowed to issue notices to increase rent or 120 day notices for substantially rehab of a unit (RCW's will apply for relocation assistance). 

Where I currently live and own property has a high demand and low supply of properties.

We shoot idiots into space on rockets and build flying cars, bragging about how good technology is getting, but my county alone is 80,000 affordable housing units short of demand...we are in a housing crisis that we as a nation have never experienced...Housing a bunch of high wage earning white people is just not appealing to me on any level.

The rental demand in the Austin area is off the charts and you should have no problem finding suitable renters.

I had many tenants move out in the middle of leases in the 40 years doing rentals, for a variety of reasons, such as death in the family, job relocation, buying a house etc. and I found it best to work with the tenants.If the bank find out you  rented out a property with a owner occupied mortgage, they can revoke the mortgage and demand payment in full.