Any of these real estate apps? 

Mobile closing anywhere?

I will not comment as to the tax laws and underlying rules - that is a discussion you can have with your tax advisor who presumably you are paying to help you.What I will do is provide practical and business guidance on tracking time.Firstly, there are apps available that can assist with time tracking where you can specifically detail your time, who you met with, etc.

It included 25 mobile homes, 60 self-storage units, and four commercial tenants.

It’s mobile home parks and parking lots so it’s not a quick flipping syndication or anything like that.  

Look at the Meet Up app for other groups. 

I also can see on apps early on if have a dangerous breed and can put those apps in back of the pile rather then it being a surprise later on. 

Now that I am in position, I would like to place a mobile home to generate some passive income, but I don't want to use my savings for the down payment.

go to local meetups, they should have some here or try meetup app or eventbrite. continue to network and that can help you execute your plans.

Quote from @Fred Scott: Sunrise Capital Investors - Mobile Home Park Investment FundI've seen a few posts about them here but none of them actually talks about what the actual annual returns have been.They are advertising heavily for passive tax deductions which is fine but what are the actual returns over a period of (say) five or ten years?