I have credibility with other agents and even with private sellers. 

Finding private money sources (ma and pa types with money) is probably a better way to go, although it takes time to find those sources.

Seasoning generally isn't an issue in the private institutional lending space. 

This one was purchased from an older landlord looking to liquidate some properties and I gained a good private financing relationship out of the deal to boot. 

Send me a private message and I will give you all the details.

What, if any, advantages are there to selling it under the S-Corp vs selling privately?

Private mortgage insurance is only for loans higher than 80% loan to value . 

Sewer line - I have the sewer camerad during your due dilligence.Feel free to reply back with any further questions publicly or privately.  

Private lenders, Hard Money Lenders, a "subject to", an Lease Option, or a Private Lender don't usually care how you do the ownership. but most of those require some cash in the deal or "sweat equity" as a safety factor for them. 

The few 10% who do have larger money the marketers can sell them on private coaching etc. or use their capital to partner on more deals.