The software in the lock and on their web site then uses this matching code as a hash to generate guest (and/or long term maintenance or housekeeping) codes based on time/date/duration.It's a really brilliant system, and one of the few that I've found that don't require Internet access or monthly fees.

.- Your name- Property name or address- Unit count- Date closed- Are you the operator?

The rental lease where I am living will expire on Jan 1 but I need to give notice by November or so.

Keep us up to date!

Is it as simple as contract the new home with a move in date within 30 days, and write the lease back agreement with the current owners separately therefore leaving it still as a primary residence? 

If they don't complete the deal in 2 years, there is no messiness as their option period simply expires and the purchase portion of the deal is done.

I get NO notification from system that tenant has not made his final payment, since payment series is archived on DUE DATE of last payment.

Yes, I am dating myself. 

Verify that these match the promotional materials and agreements.Completion Timelines and Delays: Understand the projected completion date and any potential factors that could cause delays. 

Discuss terminating the lease with the tenant and enter into a termination agreement for her to leave by a date certain.