This would certainly have an impact on my cashflow.

Some solid points here.Link Below Houston Business Journal- How the Chinese market crash could impact Houston investors.

That's going to impact the advice people will give you here.Where are you looking to invest if you do sell it, and are you certain you have no additional equity in your property?

There are lease terms that can and will potentially impact the direct financial obligations/benefits of the land owner, and you wouldn't want an appraiser to provide guidance on these matters. 

Since most landlords do not rent to felons, this has no impact upon them.

Flippers on the other hand can be severely impacted by market swings and lose big!

You do not want that as it increases your risk for both properties should some life altering event impact you and or your wife moving forward. 

The C and D class assets (weak hands), will get slaughtered in a massive deflationary downturn, and the A and B class assets will be impacted less as investors with strong hands will be holding these assets.Minh, I've been posting on Bigger Pockets for 6-7 years now and have read many of your posts, and you are definitely among the smartest investors I met here.

That will impact your monthly payment also.  

A loan with a 20 year amortization can drastically impact your numbers compared to a loan with a 30 year amortization.