I got a final notice because the tenant hasn’t paid the bill.

If it expires in 60 days, and you don’t want to renew, then send her a notice that you aren’t renewing.

THis means as your equity increases due to appreciation, your equity value decreases. 

Here’s basically the reason why I’m asking this… I have 10 commercial units which I rent out… I charge approx 1000$ on each… in the past I used to issue eviction notices SUCCESSFULLY on my own.

She has an attorney on the job who has served him with a notice I’m not sure of the days just yet.

I would proceed to eviction for non-payment serving all the required notices. 

Is there room to raise rent or decrease some expenses?

I've been doing research into how to do it and as far as I can tell the process is that I pay off their missed payments and then do creative financing like subject to or owner financing with the owner to get the property.My question is, can I still buy a Pre-Foreclosure by helping the owner to pay off the missed payments and then get the property subject to if there has already been a Notice Of Trustee's Sale?

The downside here is that this will require two loans, which will decrease my ability to purchase additional homes down the road with traditional financing.

Notice I didn't mention spending that cash?