They say "stop being lazy and find a real job in the private sector".

I’ve been shown no evidence that there was fraud, nor that the sale of the investment opportunity was not in compliance with either the General Exemption for Private Placement or Reg D safe harbor.  

Some lenders offer creative solutions, like a cross-collateralized loan, where they use your existing equity as security without refinancing the duplex.Another idea is partnering with private lenders or exploring a second-position mortgage, depending on your lender's terms.

You can save a lot on costs if you do many repairs yourself.Look into hard money lenders or private lenders for the initial purchase and rehab.Connect with wholesalers, agents specializing in investment properties, and other BRRRR investors to find deals and learn more.

@Ricky Rigsbee - I use the Michael Blank SDA and think it's extensive enough for modeling a purchase with or without syndication. 

Is there a private entrance/parking or room to make one?

Yes, the onboarding process is extensive.

You set your own payment terms with YOUR client and then find funding for them.The Capital Syndicate is a private lender firm that offers financing through their own company, but they also provide you with a list of about 150 other private lenders. 

Many opt for other investing methods in their SDIRA like private lending, crypto, private equity...anything except collectibles and life insurance.Note that a Solo 401k is exempt from UBIT on leveraged real estate so if you have self employment activity and no full time employees save for you and your spouse you should consider the Solo K as an option. 

Luckily I do and Rentvine has a pretty extensive set of commands to use.Plus they have a demo account which you can test your code on by importing fake data into that account.