That seems to be a big road block for my  operations?

Block their number and send them a notice stating that their behavior has forced you to keep all communication in writing.

A lot will depend on what type of real estate you want to become involved with; rentals, flips, wholesaling, brrr, singles, multi-family, commercial, etc.Here are a few suggestions:  (especially for singles and small multi-family)  concentrate on the best school district, get the worst house on a great block, stop your car and get our and actually speak to people working on their yard or just sitting on their porch, eat at a local mom/pop coffee shop--sit at the counter and speak to the waitress and customers.  

Can the courts block a transition even if the deed does not?

Checking local code requirements is essential.A comparison of a residential (1-4 unit) property to an apartment block is mis-leading.  

My friend also happen to have a drain line in running through the backyard so "winning ".

When this happens it makes sense, but this is not the norm.this is old news but I think read an article I forbes about the FLA tax liens and that insurance companies etc were happy with 5% so they bid everything down.. and placed large blocks of what they felt was secure money at better than CD rates.. ?? 

For instance the one I am buying has stucco exterior, new roof, dry basement, new furnaces (3 of 4), new hot water heaters, new plumbing (except for some of the drains). 3) Vacancy - My four unit has only had one vacancy in 15+ years.

These are good building blocks.

Also, a guy could almost intentionally go after listed homes by sending a flyer to the listed home's homeowner as well as to others in that block, so as not to make a total enemy of the agent.