@Peter BuiHis total Project Investment was $52K ($20K Purchase price, $2K Closing Costs, $30K Rehab estimate).  

If you execute a solid plan for your project you should be able to refi out at least what you invested, likely somewhat more.

I've had a "shell" of a website up for quite a while now and I hem and haw about completing the project so it is fully operational, mostly because I'm questioning its true value. 

We look at it like a potential buyer, not an investor who sometimes banks on the property selling toward the range of the higher comps.We don't "send you how to books and tapes" We have a trained staff to help you work on your business- a deal desk that you can call to review any property you have under contract, a compliance team to review risk factors, construction project managers that will vet your contractor bids - in addition to the resources that help you learn THIS SPECIFIC way of evaluating deals- finding the types of properties that do qualify for low or no cash to close.

I am planning on building a ADU in my backyard and I was wondering if I should just hire a general contractor and pay lot extra or do my own project management  by hiring individual contractors/sub-constractors to do the job.Like - Arhictecture and permit person, plumber for all my pluming including addition sewage and water lines , foundation and framing contractor.

Welcome to BP and good luck with your first project.

Three large projects might be too much to make the prime summer selling season.

You may want to consider that the interest rates are continuing to creep up, and in 6 months they may be higher than they are now as a result you may want to hold out a bit longer on the refi. make sure that the deal at whatever rate you choose meets your financial objectives just incase you cant refi for whatever reason at the time that you initially projected.   

The project gets delayed, or your contractor blows the rehab.

perhaps a second set of eyes on a potential project assessment / assumptions?