Consequently, you might want to try to salvage this deal and move on, fast. 

If treated kindly and with respect, they will usually be honest and vulnerable about what they are going through and how they might be able to either salvage the situation or walk away with dignity. 

She is actually okay for the past few years until she saw that I have totally rehabbed one unit when tenant moved out and I guess she feel jealous and have since demanded a lot of repair/upgrade and started making a lot of accuse saying mold issue causing health issues but at the mean time trash my yard and keep the common area dirty.

Same 3/2, 1200’  SFH with similar finishes, yard, etc.  

The yard is currently fenced.

(Not even a single, never done any flipping)Limiting beliefs I crushed: No way I can invest outside of my back yard, How can I trust others, You need lots of money to start, I should start small like single or duplex before going to multifamily.

(o) The yard is a shared common area for the enjoyment of all residents; lawn furniture and other items stored in the yard are subject to use by other Tenants.

I do, however, have virtual credit cards for vendors I have recurring payments with like cleaner, spa maintenance and yard maintenance.

Great yard and great location

Someone will bid $2 per yard and you’ll end up with carpeting that doesn’t last one day.