However, health concerns forced me to step away from the hustle about 6 years ago.Fast forward to today, I'm officially retired and living in sunny California with a renewed sense of energy (and much better health!).

Renew it before it expires. 

Common fees will include a set-up fee, a leasing fee for each turnover or a lease renewal fee, marking up maintenance, retaining late fees, and more.

We did not renew a tenants lease due to multiple violations.

What happens at 9/1/24.. can i still raise the rent for 10/1/24 or will the contract renew it self for a year and stay the same amount?

Their 1 year lease end Oct 31st, even if they are able to keep paying rent, albiet late, should I plan to let them know I wont be renewing their lease at the end of the term?

They already responded three months ago that they are not renewing the lease.

I'm planning to renew the lease starting November 1, 2024.

For example reminder to replace HVAC filter every 3 months, to ensure pets are vaccinated yearly, to ensure tenant sends me copies of renewed vehicle registrations and insurance etc.

I only know of one local bank who will, and with them, it's a commercial line of credit floating at Prime + 2.5% (11% is the indexed rate) and it has to be renewed every 2 years, including a 24hr rest.