I think for at least one of mine (it's been a long time) it was just a letter that my commander had to sign, basically saying I was in the military, behaving myself, and the Air Force wasn't trying to actively kick me out.

It is better to find a win/win as you cannot force them to stay.

Which give you opportunity to force some equity.

My wife and I are MTR owners and operators that really only use MTR arbitrage when we are at capacity in the units we own, and we have potential residents who would otherwise be forced to stay at extended care motels or similar.

I think you can let the guest optionally add an email with touchstay but hostfully has the option to force collection of email in order to access guidebook. 

Its not worth the headache to force someone to stay who is just gonna not pay you anyways.

I believe it will continue to be unattainable for most people entering the work force.

When he went to Afghan, he didn't buy a house there. 

In my experience, you can purchase the existing home and the encroachment is grandfathered in, meaning the vacant lot owner can't force you to move it.

Everything in SEO should be natural and nothing should be forced.