I am curious that you have a check book control SDIRA/solo 401K and you do not have a financial advisor who can expertly guide you through this territory. 

This is to ensure that any subsequent investment decision is made dispassionately and without any biases regarding your impression of the property.I would hire a qualified appraiser to assess the condition of the property and rely on financial due diligence and investment analysis when making my decision.All the best!

I am still going the business loan as it would let my business own this property and for my personal asset protection.

We have been using creative financing options to this point in order to maximize opportunities and due to limited financial resources of our own.We have what seems to be a great opportunity to buy a triplex in Salem, Ohio via seller financing; (my husband and I analyzed the numbers, taking into account cap ex, possible vacancy, management, etc. and it is a great opportunity numbers-wise.) 

I have been a licensed Real Estate Agent for almost 10 years and have also branched into wealth and risk management as financial advisor.

Refers to the conditions under which a rent-stabilized property can lose its protected status and revert to market rents. 

I'm looking at getting a private money loan from Jordan David Financial Serviceshttp://jordandavidfs.com/Does anyone have any experience borrowing from this lender?

Your lawyer handles the financials of the purchase including the security deposits.

Our goal is to be financially free in 20 years, and use real estate as part of our investment portfolio to achieve that.

There are all sorts of reasons people who have been my tenants have been late with payment and it's always been resolved without financial impact to me.Don't be afraid to give them the 3-day - it's a shot across the bow.