Now I have fast reliable service at a lower price point and I can quit anytime with 30 days notice.

Leases often have tenants give notice of intent to renew in the lease for the options and times I see usually are 6 months, 9 months, 1 year.

That said, you are still currently allowed to issue notices to increase rent or 120 day notices for substantially rehab of a unit (RCW's will apply for relocation assistance). 

I noticed a a few houses being flipped, and the amenities of being near DTLA, USC, Playa Vista.

Therefore, the lender must receive notice of the initial auction when the tax collector sells the certificate, as well as notice of the redemption period if the certificate is sold Typically, the lender will step in and outbid you for the certificate at the initial auction so it can protect its interests.

Their lease waives the 5-day notice to vacate requirement. 

In this case you would follow whatever you State notice requirement is, for example provide a 10 day 'notice to cure'.

Just noticed you mentioned "small upgrades".

Questions I have as I approach a lease ending in Mid November, 2 months away…-How much notice do I need to give before I ask if they are staying or leaving?

I always take notice of the emails I get that show high commissions or agent bonuses.