There is a statistic somewhere that says a satisfied customer may tell one or two people about his experience, but an unsatisfied customer will tell, on average, NINE people about his bad experience. 

At the end of the day, though, the tenants are still your customers. 

If the tenant is not complaining I would focus my energy on something else.

You might not want to live there but your "customer" is the section 8 tenant and they most likely would be fine living in a nice house even though next door is an eyesore.Third, I wouldn't worry about the tree unless you see clear evidence of some kind of damage happening now.

Yeah, I don't think you should waste your time or energy even worrying about this.

My family has a large energy law firm that specializes in the fracking industry throughout PA and Ohio.

Regarding finding that next property, I think figuring out an investment strategy that suits your personality, available time and energy and skills will be very important.

Writing contracts goes deeper than just writing down understandings, it shows intent, practice, knowledge of legal aspects that are often best left alone so they may be debated or simply cured by custom or law.

The number of customers available to you on the internet may be higher than in your local area, but so are the number of competitors.

Hey Larry,  I was in your same situation a couple years ago and I decided to buy a small property in Topanga Cyn and build a custom affordable modular home and got it built for under $150,000 in less then 6 months time it was the best thing I've ever done and I could resell my home rite now for almost double the price I paid and my home is as nice or nicer then any traditionally built new home in the local area.