Although for tax purposes you are an S Corp, an S Corp itself is not a legal entity classification.

For credibility purposes, do you have a portfolio of apartments already to point to and say, "I know what I'm doing"?

I've used some in the past where my items were damaged and they purposefully took a long time to move all of my items into my new apartment since they charge by the hour.

What percentage should I give my business partner if he is only used for credit purposes.

There is usually a clause that allows a landlord to terminate a lease for the purpose of renovations.

Then mint app the accounts for consolidating purpose.

I wrote the above for informational purposes.

Here's an interesting place for re-purposed renovation materials.  

You should be able to get a prorated tax-free exclusion for the 573 days that you lived in the property as your primary residence as long as those 573 days were during the last 60 months (five years).You would only qualified for a 1031 Exchange transaction if you had moved out of the property and held it as rental, investment or business use property for a period of time to show/demonstrate that you did in fact have the intent to hold the property for investment purposes.

If you sell a rental, you do not want it to be treated as a flip for tax purposes.