I have a lease coming up due and the lease agreement has 2 people (not related to one another) on the lease with an initial security deposit of $1000.

However, even though you are keeping the initial property, that CF from that property will go down.

My initial thought is can't we manage with couple of window AC units.

Initially the PP was 310k on open door.

I recently sold my CA home, with the initial accepted offer being 7% over asking, with all contingencies removed from the outset.

Everything in the home is fully upgraded with the past 4 years (plumbing, electrical, roof, foundation waterproofing/draining, new municipal sewer and water connection, etc.)We could expect about $5,000 yearly residual initially until paid off and then we could expect rent of around $825 and rising from that point forward.

thank you for clarifying that, My initial thought was it drops off after 20%, I will most likely refinance in the future.

I currently only have one tenant behind that is not paying, but I have offered work and she initially declined and I gave notice of the need to move. 

I was initially thinking about investing in a duplex or triplex in with upto 500k in Oakland CA due to its close proximity to SF but it looks like the prices have gone up really high now, I was also thinking to invest around Roseville, Tracy or even Sacramento at least in a single family but I would like to know are there any other markets worth looking into for even better Cashflow?

Build up your initial cash reserves.Your young, go overseas and get and set aside your extra pay.