According to the brokerage and agent, these individuals either weren’t serious or claimed they didn’t realize the property was occupied, even though it was clearly stated in the listing.I’m not particularly concerned about the property’s condition or the eviction process, as I’ve already secured some level of cooperation and have basic access to the basement.

I'm assuming it's because the wholesaler is basically the middleman?

However, if you decide to install HVAC, it should be based on the comfort and safety of your tenants.

Basically types of deals where you will pay the money back quickly, but I have heard of some folks getting financing for longer term with lower rates. 

I generally pay on average 400-500/month a month for basic maintenance and repairs. 5200/year for property taxes. 5000/year for insurance.

What measures have you taken to ensure some safety and deter local nuisance?

Basically, it is hand holding for your first tenant and property experience. 

Once you’ve got the basics down, networking is key.

Just looking for something basic. 

One key lesson is to always prioritize a thorough inspection—and go beyond the basics.