Often it is those tradesmen renting do nothing to help, do do not pay rent on time but asking for discount that are hanging around.

Those are the factors that keep you wanting to hang onto it. 

A lot of my numbers are either really general guidelines, but once I get the hang of navigating the calculators better I plan to actually speak to some property managers etc.

Having a huge negative debt hanging over your head will only be a hindrance when times get tough and be the straw that could sink your investment.

I would have thought that when you hang out with friends like @Brian Burke , some of that that syndication mindset would rub off.  

relative to the price points post GFC IE 09 to 2012 were there was lots of low hanging fruit and the 2% rule was alive and well :)..

The  inability to show exclusive and continuous possession means judicial redemption rights could hang on longer than anticipated, void tax sales could be set aside longer than anticipated, and if it has been three years since the tax deed without exclusive and continuous possession for SOME period of time towards the end, then the taxpayer might be able to set aside the entire tax sale and pay the investor nothing at all. 

The tree limbs are over grown and are hanging over my side of the property.

Their trash is stored outside and typically hanging wide open, which I suspect attracted said wasps.

You need to maintain the license and hang your brokerage with a brokerage.