I have actually managed to save up enough for multiple down payments around 20% as i have been here for 5+ years and not been able to qualify for credit (due to history length) so i have been pursuing the 20% conventional method initially. 

The property quality matters.

More isn't always better, look for quality and learn how to do due diligence on deals.

Are their listings detailed with good-quality photos?

For notices, contact her through her normal method, but also post a notice on the house AND send a registered letter to the last known address.

The lead quality had taken a turn for the worse in the last few months. 

Rehab: Coordinate with local contractors to perform quality, cost-effective renovations to increase property value and rental potential.3.

I have no data, but from my experience this is the key to section 8 rentals, buy and update a home which will attract the better quality section 8 tenants.

Which method(s) have you found beneficial or that you are keen on? 

Not a huge deal in my opinion and it may open the doors for more negotiations if i need to find other financing methods.