Re Leases
A former SBP (thanks Spider) advised me in this regard, and I've taken the advice ever since.
Explain (with humility) that you're a pilot and your job can take you anywhere in the country at short notice. By suggesting that you have to go when directed, you should be able to have a special clause inserted into your lease, allowing you to break the lease with short (say 2 weeks) notice in the event that your 'employer' transfers you.
Of course if you just decide to move on then the usual lease terms would apply, though damned if I know how the real estate agent would be able to determine the difference.