I regularly advertise myself as a private lender and turn down lots more people that I qualify (really qualifying the deal rather than the borrower).

You may want to consider institutional private real estate lenders such as the one's that advertise here on BP.

if there was a electronic lock box you can see who did the last showing ( have to ask listing agent) but it would prove nothing, I have had this happen before your  only recourse write up your best offer to lock down the property it is usually done by the buyer to prevent other offers 

After 8 months of advertising with lead generation cards and posting "Land for Sale" signs I now have about $10,000,000 worth of land under listing contract and I have sold 4 properties. 

That is only if you are advertising for lenders.

My OFF Market means the property was once listed/under contract and advertised by a licensed RE Agent, the property did not sell, and the owner took it from this Licensed Agent.

@Gregory Van Heest  first off don't advertise this on a site like this your going to get all sorts of PM's from who knows who.second.. talk with experts in the industry... there are many options.1. is to find a very good syndicator and do a few of their deals.2. invest in quality reits so you have liquidity.3.

Working as an electronics technician.

You most certainly can sell the building before it is stabilized, but buyers will discount the validity of the buildings performance.So, to figure out the {potential} value of the building you need to:1) Determine your revenue:determine what is the market rent for each unit type in the building and calculate your scheduled rent;determine the market vacancy for the area (for each unit type) and calculate your anticipated physical vacancy;Subtract the second from the first above and you have your {projected} effective gross revenue;2) Determine your total operating expenses:These include: property tax, insurance, yard maintenance / snow removal, electricity (house metre), oil/gas (if common heat); water/sewer, garbage collection; janitorial service; maintenance (10% of effective gross revenue); Property Management (7-10% of effective gross revenue); advertising, accounting & administration, etc.3) Calculate your Net Operating Income (NOI): Effective Gross Revenue - Total Operating Expenses4) Now you need to determine/learn the price being paid for similar (i.e. same class of building) cash flows in the local area.  

My entire HML business from 2001 to 2008 was based on this formula were I was lending to those buying turn key.. we put them into title with no money down the buyer would get a cash out refi.. the marketing buys in LA advertised buying 4 homes with nothing out of pocket just needed that W 2 income and credit...