What are the specific legal grounds for eviction in this situation, considering the tenant's behavior, lease violations (including the unauthorized movement of furniture), the failure to submit a work order, the late-night disturbances, the harassment of my son, the unreasonable demands regarding property access, and the potential safety concerns for myself and my son?

Still wouldn’t have expected it to be such a failure like that.

That is INTENSLY risky, failure % is wildly HIGH.

Make 80% of all your failures on paper first.

Besides the failure rate, wholesaling is legal when done right, but most programs teach you to practice real estate without a license which can get you in trouble. 

Jump off the cliff or Analysis Paralysis-  define failure.  

There will always be a level of fear of failure and you will most likely experience some, mitigating that with diligence will keep you in a healthy state of paranoia.

The final straw was when my property went into abatement after an inspection, due to the property management company's failure to address tenant requests for the exact items that caused the issue.

Probably the hardest thing some of us ever do is give ourselves permission to risk failure to succeed. 

Also, can you sue the previous broker and seller for failure to disclose or at least report it to the local board?