Her half-siblings, who felt she didn’t deserve the property, were dead set against the sale and refused to cooperate.

Sorry Vendee appears to be dead again. :( but it may come back

You can't sell a portion of a property like you can sell portions of stocks, bonds, mutual funds, etc.

New electrical and plumbing were needed after doing the demo of the kitchen and bathroomsOn the buying materials, I did buy the kitchen cabinets (in-stock), countertops, bathroom vanities, tile and plumbing and light fixtures (not the recessed lights which the contractor bought).

Brought it up right at the closing and he claimed they were dead and he thought he was doing us a favor by getting rid of them (but simultaneously leaving us a house full of old garbage).

Syndications are also not Debt or Stock investments from both an SEC, market information or management standpoint. 

I plan on splitting this land into two 1.5 acre lots as there is enough road frontage, but I'm concerned that someone could show up and want to start drilling in the backyard.I think someone wanting to drill is unlikely for the following reasons:- the original owners are probably dead and the ownership is split between inheritance to multiple people- the lot is too small for them to mess with- there is only a single active well/pump within 30 miles from what I can see online.

(My renovated units are unusually nice at each price point where I compete-- and so far, I have always had multiple applicants that want to rent; even in the dead of winter and right before the Christmas holidays).

We would handle the guest communication, coordinating cleaning, minor repairs, stocking supplies, calendar management, etc.

Stock up on liability coverage you are in a trial attorneys paradise.