Unfortunately the lot we may buy is from family members and therefore time sensitive and price is fixed.

For example, I know some landlords are more price sensitive, while others care a lot about quality and customer service or even Google reviews.

Understandably a sensitive subject, but ultimately you simply want to protect as much of your Father's assets as possible (again, I see your point that even if you're not paying capital gains from your own pocket when/if you sell- at least avoid how much is paid from funds that were inherited from him in time, protecting what he worked to acquire over the years- not money hungry, bottom line smart).

If he is plagiarizing, there is no thinking what he will do with your sensitive information.Below is a link of him plagiarizing. it is also seen in his response to your post...Run!!

You need to generate a pro forma that plugs in all your assumptions, land acquisition costs, development costs, rental rates, hold terms, and then let it spit out a sensitivity analysis so you can see what your IRR would be based on the hold and the equity multiple generated based on offer price.

I wonder how such a sensitive person would manage a difficult tenant or challenging contractor situation. 

It’s important to have some sensitivity and back off when it’s a subject they aren’t interested in.

While I have all the confidence in the world in Civil Engineers to be able to solve a problem like this, I also have equal or greater confidence that a landscape architect would be better suited, as many of us have years of experience working with residential home owners, and a greater sensitivity and eye for aesthetics that are often overlooked by our civil counterparts. 

Quote from @Jeff Cliff: It looks like CA allows you to file a Civil Harassment Restraining Order

They told me they aren't technically open for sale yet but I could use the code EARLY (cap sensitive) to get them!