(Note: I'm not a lawyer, but this is my understanding based on my experience)  A human being will need to sign on behalf of the LLC and that human will need to have the authority to sign. 

This is yet another tale of a building inspector who feels the need to assert his authority by constantly reminding everyone, "I am the Inspector." 

Additionally, in the R-7 and R-8 Zoning Districts, you need a Conditional Use Ordinance from the City Council to authorize the conversion.

I've always gotten a signed "authorization to release loan info" from the owner on record. 

Do you think my age will impact my authority as a landlord?

Not sure about maple heights/cleveland, but just down the road here in Akron, the Akron housing authority maintains a list of properties and landlords who are actively interested in providing section 8 housing.

Proc. 2004-51, 2004-2 C.B. 294, that fall on or after the date of a federally declared disaster, are postponed by 120 days or to the last day of the general disaster extension period authorized by an IRS News Release or other guidance announcing tax relief for victims of the specific federally declared disaster, whichever is later.

It was written before the days of YouTube, so it's not full of the common nonsense where authors sell a course, send you to their website for downloads, or write a follow-up with additional "secrets" they forgot to put in the first book.Long-Distance Real Estate Investing by David Greene was another good one.

I engaged my webmaster - SEO expert to handle it and she contacted Mailchimp and was able to secure a new account for us, with her listed as having the final authority to authorize a mailing.  24 mailing later never another problem.   

She's not going to have any leg to stand on in court if you get that far unless there's some explicit language prohibiting the owner from assigning responsibilities to another legally authorized party, and I'm guessing there isn't if another PM company was maintaining the lease and provisions - and the fact that the tenant was voluntarily working with the other PM confirms the acceptance of an authorized agent even if it's not explicitly stated, the same way if you accept rent from a tenant after a lease expires you imply acceptance of the lease terms continuing (which is why you should always have a holdover provision).