Why are they advertising that seller financing is available? 

Outside of raising money from others or seller financing, I am looking to see if there are private or other lending options that could cover 10-20% of a downpayment on these loans with a shorter loan term of say 5 years.

The best way to sell it will be seller financing or to an all cash buyer.

Here's the thing about ALE and similar agencies: they can be a goldmine, but you need to adjust your approach to meet their demand sweet spot.

Quote from @Tom Gimer: @Jay Hinrichs We essentially have an in-house abstractor (Salt Abstracts — MD; M&M — DC), so when I REALLY need it I can have title in ~1 hour.I try not to be that demanding often but it’s a nice resource to have access to. not everybody has an abstractor on Speed dial LOL..

I email the sellers agent all the info , and she emails back that the deck isnt up to todays code .       

This can lead to "renegotiation" demands at the closing:(Other Potential Issues to Consider:Being in the chain of title is also exposure to potential legal issues.Selling an assignment may be a violation of a state's real estate statutes.Wholesaling w/o a real estate broker's license may violate your state's statutes.I'm sure there are more...

Examples could include:Partnering with other investors to share risk.Using seller financing or lease options.Leveraging creative rehab techniques to save on costs.Negotiating with contractors in a unique way to reduce expenses.I’d love to hear any stories, tips, or approaches that helped you pull off a deal others might have instantly passed on.

First, obviously leverage is the MVP, but this isn't my first interneting, I know controversial titles get more attention.
Second, I’m a recent convert to Pocketarianism. Bogleheads was the source of most of my forma...

Oh also number one skill to develop regardless of the route you take is being able to identify and get in contact with motivated sellers.