I had a company ask me for a reference last year before my tenant gave notice and I just asked my tenant to sign something to the effect that they were looking at other property's.Its a win for every one.Turn over is not a bad thing.We have been raising rents and deposits on every turn over for the last 5 years.  

Yes I do read Chinese but is this contract even has legal effect in California if it's mixed with English and Chinese?

I personally am an advocate of making sure you know enough in order to invest intelligently.

From the property managers I’ve talked to, some will actually slightly under-price their property in order to have the reverse effect- lots of interest in the rental, therefore they can be picky about who they rent to.

However, all other liens against the property, including mortgages or mechanics' liens, remain in effect as well.

Thoughts on what would be more cost effective for me, commercial loan or try and take out a second mortgage loan??

I apologize if it fails to effectively do so. 

And less likely to feel significant effects from a recession.Thoughts? 

That is not effective and people won't learn from that in this trade.

You want to be sure you deploy that money in the most effective way possible.