You will need to negotiate any added value for improvements.Using the CASH program may help you fill vacant lots - they will need to evaluate the park and your ability to personally guarantee such a large number of homes.You need to run a test advertisement to get a handle on demand for homes.  

Best advice is to stop looking for something that doesn't exist and re-evaluate your plans. 

Third, you'll need to start learning what you'll need to do when a unit becomes vacant: evaluate damages to cahrge against SD, lining up handyman to do repairs, taking pics, writing an ad, where to advertise, taking calls for showings, how will you do showings (?)

Have evaluated several others and this is the most robust.

The group is fairly active and we cover all types of topics like what markets we're investing in and how to accurately evaluate properties, etc.

I kept looking at the process and evaluating what I could do better and built systems along the way.Like a few others have pointed out, you probably needed to buy the property for a lower price to get your money out.

I would love advice on my next course of action, I have evaluated the property and believe the market value is about 300k.

I purchased my first duplex in June of this year, and I am evaluating conducting a cost segregation myself OR hiring a firm to complete it.

Part of my job is to do a BPO(broker price opinion) and evaluate the home.My point is, that how do people who do this part time find great deals with out dedicating some serious time and effort.

If so you have to really re-evaluate your thinking.