I am investigating purchasing another long term buy and hold property that has a septic tank. 

The reason for my investigating the private lending route is scale.

Be sure to "refresh" your investigation right before the foreclosure auction because liens could be filed at the last minute.Do some reading on BP.

My wife and I were in Reno recently investigating the potential for buy and holds.  

Sure, maybe the PM could investigate to see if there are men's clothes, shoes, etc. in the MBR closet, but it's still hard to prove, and even harder to prove if you go to court.  

Property is on two acres of land, so currently investigating additional ways to boost cash flow such as solar energy, separate garage lease, etc..

Technically if you decline based on information provided by a Consumer Reporting Agency (IE credit report, background check, etc) you have to give them an Adverse Action notice (SmartMove can provide this for you if you use them) which will state where the applicant can investigate further and dispute the information.I tell applicants simply: "We have received your application and unfortunately it does not meet the qualifications for this property."

A private investigator can do wonders.

I check all new properties to the market on Redfin, and if I find one that warrants further investigation, I then look it up on the MLS.

I was renting,when the house fire happened,Fire Dept investigators red tagged it,owners remodeled,from insurance money then sold over a million,never told buyer it was arson,until arsonist returned trying to get it,who is my son awaiting prison,I finally have a place ,home owner told me I can't use him as reference because he didn't want to lie,yet lied to buyer who is now terrified and didn't know ,is worried about safety for her family,,owner never disclosed?