It requires the borrower has significant experience and is very costly (in terms of rates/origination)It's generally really risky to do 100% financing especially if you are inexperienced.

I finished a large rehab yesterday that had more go wrong than any of my previous rehabs (we have a fair amount of experience) but still only went 10 days over our aggressive schedule.  

@Molly JonesUnfortunately, many wholesalers that you meet randomly online are not very experiences or particularly skilled at what they do and often rely on bulk rather than quality so there is a high probability that they know very little about the property itself aside from the basic data that they obtained online through data scrapping.

You will build skills and experience in acquiring and managing the duplexes that will help you with real estate projects large and small. 

Has anyone found a more cost-effective alternative that can match CoStar?

I don’t have multi-res experience in DFW, but I have owned multiple rental sfr’s there from prior to the gfc.In this business, especially now, you may need to kiss a lot of frogs to find your prince/princess, or turn over a lot of rocks, or any other metaphors that you like.

If you don't have experience, you don't want to take your family's money and put it at risk.

Anyone with experience in fair housing complaints, please comment.

I figure the worst case scenario, I don't sell anything but I gain a very significant amount of experience and knowledge about real estate (I would be surprised if this happen though as I do have a lot of sales experidence).

Whole homes, in my experience, have more vacancy, especially larger homes but the overall dollar amount is higher in most cases.