Thats why you see lack of ADA compliance in small businesses.  

Is it on a busy street, does it have a view, etc..

Sometimes occupants still live there and eviction is not easy, and I have even heard a story once that the yakuza are involved in the construction and real estate business and exorted money from buyers through occupants in these properties. 

Make it part of your business model and focus on scaling vs managing.

I am not aware of a FSBO business website.

I checked the Better Business Bureau for complaints, I checked the NJ State Attorney General consumer division to ensure he was licensed, I checked every reference he gave by visiting sites and speaking with the homeowners. 

We currently accept rent from tenants using a variety of 3rd party apps-Cashapp, Venmo, Zelle but are moving away from accepting payments in our individual names and want to start accepting payments directly to the LLC/business accounts, but LLC accounts do not accept Zelle and there is a fee for using business accounts on Venmo.

After time you can start finding them on your own after you learn more about the business. 

Interest Rates: Current spreads, rate structure, buydowns, mission driven business, factors that influence your rate, etc.5.

From a tax standpoint, there are additional disclosures to make when selling a business asset for less than fair market value to a related third party.