Most automatically go to 30 days.

Based on what you said, and upon reading the lease term more closely,  it seems like once their current lease expires, this lease automatically becomes their new month to month until such time as I give them a 15 day notice or they notify my that they will be leaving (also 15 days notice) correct?   

So to help this process, I have set up my credit card's automatic monthly payment's for my cell phone bill and spotify to have substantial credit history.

@Michael ChangSo, from my experience and knowledge I have accumulated, the lot lines you see are usually automatic pictures and added through the satellite.

If they do pay and don't get out at the end they are holding over with no automatic renewal. 

Through it, I have all my communication automated so I never miss an inquiry (even at 3am), it automatically sends guests check in/check out instructions and sends them a message the day after check in.

@Camila HealeyJust moved out of my house hack in Pensacola and shifted to a rental.

If the seller tries to back out of the contract because priorities have shifted - not to be insensitive - but we have spent a lot of time and resources on this project - what are my options.

The demand curve has shifted right (monthly budgets are up since the cost of money is low) and the supply curve has shifted left (due to the moratorium.) 

If they don't NEED to sell, they are unlikely to shift their expectations downwards quickly.