And then, you go into specialty products.  

Solar panels require little maintenance over its productive lifetime so the major cost is the upfront cost of installing the panels. 

They all unfortunately have the same product...really expensive money.

Other paperwork: Purchase and Sale Agreement, Lead Paint, Seller's Disclosure of Defects, etc.

In the long run, say 5 to 10 years, return on investment will be much higher than any other investments like stock market or bank products.

http://www.sargentlock.com/products/http://www.corbinrusswin.com/en/site/corbin-russwin/

If you are using the LLC to provide a product or service and generate earned income, then that LLC could sponsor a Solo 401(K) plan.Generally speaking, if you qualify for a Solo 401k - both today and for the long term, there are some advantages to the Solo 401(k) format in terms of higher contribution limits, elimination of UDFI taxation on leveraged real estate investment and a few other factors.  

Or try a "private equity" lender, such as Lima One with their Rental30 product. 

When employees can no longer afford their housing and other living expenses, productivity suffers = profitability suffers. 

A) Buy out investor 1 with cash or assumed mortgage, finish rehabbing house in your name with various unknown defects from shoddy workmanship, sell it at / near retail, and pray for no future liability issues.