I was kinda criticized for not knowing what I am talking about, or being harsh to my CPA.

Bad actors in the housing industry should be dealt with harshly without making us all suffer.

Older elderly retired, but is not the cleanest person, my pest control guy went over there and said there where bunch of fruit flys and tenant wanted him to spray chemicals which he said he couldn’t do that, and kindly said to clean up and pick up after her self.

Nefarious folks may try dumping oil, chemicals, etc. on your land and contaminate the soil.

I made the move from chemical engineering to loan origination part time initially and eventually fulltime and wish I would have done so sooner. 

It sounds like you're trying to push investment ideas into the scope of what you are trying to achieve...but you haven't defined what you're trying to achieve beyond reinvesting a 1031.I had to read this advice several times, and you came across as a bit harsh your cart and horse analogy doesn't apply at all.

That may sound harsh but really you need a thick skin to be in the buisness of landlordering.kick everyone out?

However, the reality is tenants can and do move whenever they want (lease or no lease).Now, you don’t mention where you’re at, and in some areas there’s some benefit to using a lease if you’re going to time them to not end during winter if you have harsh winters and it’s hard to find tenants during that time where you’re at.

I know some people are coming across harsh, but it is better to have random internet strangers poke holes in your plan, then to lose a bunch of money on a deal.

This site is full of knowledge, helpful advice, and harsh reality checks.