Typically a LL will require a personal or corporate guarantee that keeps you on the hook for the duration of the lease regardless of any other circumstances, especially if they are putting money into the building. 

You can also check rentfaxpro .com for more formal insights, average vacancy durations etc...

It sounds like a positive net of $2200/yr for 3 years and then approx $3k/year for the duration of your debt.  

In other words you can't bind 1 party to certain terms for the duration of the agreement but allow the other party to change the terms anytime and anyway they want.

The ownership of a life estate is of limited duration because it ends at the death of a person.   

Can you rehab the property, put it back on the market and take the profit in that situation or are you stuck with it for the duration of the contract?

What's the duration of a cycle?

Nik Parks like Joel says things are changing with FHA your going to have to pay the PMI for duration of your FHA loan.

Once you have made a decision that the US is a good place to invest in, you need consider what kind of return you are looking versus the risk you are willing to take, the duration of holding the property, the team that can assist you on the ground and the tax. 

Don't know their seasoning duration.