Make it your business practice to post the notice to pay or quit precisely on the day after the grace period ends, every time.

Your not correct under many different circumstances.First property tax is 1.1% (fairly safe) with 2% annual increase (prop 13).Next expenses include a lot more than property tax and interest. 

Electing disregarded entity status avoids additional filings while achieving the same tax outcome.This post does not create a CPA-Client relationship.

It's not the same as kicking your own mother out onto the streets.

Or do you need to strictly stick to repayment process based on the duration of the loan?

Be sure that you are honest from the jump, your estimated rate are only as good as the info you give them.

But what made me think about it for you as I read your post is the LULA feature. 

Unless you have a clause in the purchase of the entity that clearly makes you responsible for the entity from the day that you buy it(Indemnification) I wouldn't bother with the LLC.Good luck man. all the best!

Much of the work can be done in parallel.

I care about the rates as it directly affects the bottom line.