I've only purchased, held, and sold 1 property so my expertise on running the numbers may be way off but are these the type of deals that most investors purchase and make money on?

I'm getting frustrated as a beginner , I'm trying to start wholesaling but every time I get a deal it always gets held.

You have great taxation folks here like @Amanda Han and @Brandon Hall and @Steven Hamilton IITreated as regular income unless you buy it and held for 366 or more days.From Steven Hamilton II```You need to realize the two are separate things and you DO NOT want to have flips and rentals in the same entity.

Personally for my property we held it for two years and were able to get out due to market increases, but your situation may be a bit different. 

The same year that I graduated, in 1980, I also got a broker license and held onto it about 30 years.  

Usually only available on 1-4 unit properties held in your own name.2.

If you are concerned with the Due on Sale, don't transfer, have a delayed settlement for a few years or until you are ready to flip the deal; just make sure you have a good lien and title report and have the seller's deed signed and held by you, your lawyer or a title company.

I held a showing 4:30pm - 6:00pm. 

Instead these costs are money held on deposit to pay the property taxes and hazard insurance premiums as then are due.  

All of your income-producing assets are held by a business entity and the entire structure can be willed to your heirs via the personal trust.This triad becomes the foundation of your business entity structure and provides effective protection against liability from either the LLC or S-/C-Corp.