Some HELOC lenders require you own the property for 6 months too, so I'd recommend to check that when shopping too.  

I wouldn't recommend Azibo, especially not for accounting.

What creative financing options would you recommend for managing secured debt when traditional refinancing or selling isn't viable at the moment?

Every system you try will have flaws, or you may salivate over a feature that appears in other software.Some familiar names are mentioned frequently: Stessa, Apartments.com, RentRedi, TenantCloud, Innago, RentManager, Avail, Rentec Direct, Doorloop, etc.I recommend conducting thorough research on each app online to understand their offerings, pricing, etc.

Quote from @MarieChele Porter: I highly recommend you join the California Apartment Association.

I understand Detroit has a checkered history with bad areas, but I don't know what the recommended areas for rental properties are right now.

My recommendation would be a documented loan with terms you find acceptable, not a partnership.

@Austin PrewettFor a rookie investor, I would not recommend a property that needs a heavy rehab or a property that is a tear down.

Few brokers have recommended a 5 year Balloon loan but I want to explore the best option available in the market currently. 

We recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.