I have also just reached my first year anniversary working in a corporate job. 

Anything over that needs a 1099 unless they are a corporation. 

(with 3 electric meters, 3 gas meters etc etc)Property is empty and is corporate owned per MLS description. 

I am looking for a company or person who has experience in the Corporate housing world to run some questions by.

That's besides piercing the corporate veil.

I am trying to determine if forming an 1120 C-Corp or 1120s S-Corp will provide the best benefits?

Here's what I would do, Instead of putting both names as beneficiary with 50/50 ownership I would put the property in a Land Trust and assign your company and you as 50/50, or just name your Corp. or LLC as 100% beneficiary of the Land Trust.I know your not structuring this Land Trust for privacy reasons but a small trick I would suggest doing is naming the Land Trust after the owner of the property and use the property address number.

HOAs are like corporations in that they are required to have periodic meetings, this is spelled out in the by-laws, and to keep minutes of those meetings and budget discussions and written budgets.

Professional landlord" is not a tax term, so I am not positive about what your CPA meant by that.I mentioned a single-LLC setup but he said that that would leave my houses just as vulnerable since they exist in the same corporate entity. 

Even if the market does correct, the corporate job opportunities won't let that last long.