@Christle Stezskal the people answering the phone may not be in the know.

I am very pleased with my NW contact though; She answers her phone every time or calls me back right away, helped me find contractors and get bids, helped me find property managers, help me understand their '212 Loans' program, so I feel like my hand is being held through the whole cycle.

I'd suggest picking up the phone or stopping by the local code enforcement office.

I've played quite a bit of email and phone tag with different departments representing the City of Jacksonville and haven't been able to get a solid straight answer.

Would also love to speak over phone/zoom if anyone is willing. 

Recommend staying away from owning the mobile homes... 

(What kind of cold calling software can I get to acquire phone numbers?)

(There are other ways to obtain/develop that evidence - such as using certified mail or my “practical advice” below.)In your case, because your friend found the letter inside the mailbox of the last known address, you now have specific evidence of having mailed the letter “…by first class mail, to the tenant's last known place of residence” - “Unless other arrangements (had been) made in writing by the tenant…”Again, in my (non-lawyer) opinion, you’ve complied with the letter of the law as to your concern - “Unless other arrangements (had been) made in writing by the tenant…”[Practical advice: Where I self-manage, in my “Notices” section of the lease, besides my physical address, phone numbers, etc for notices to me, I provide two email addresses for myself, and state in that part that email is my preferred method of communication.

We currently own the property & is being used as a mobile home park with a single family house. 

Is it possible to hide phone number from the listing?