If you have been a victim it is important to let that be known now so we can get this taken care of before your situation worsens as they abandonship.The city has commited to an active role in persuing criminal and civil penalties against them.

A little about me: I have a BS in Civil engineering and an MS in Environmental engineering.

I guarantee if there is litigation the Sponsor is going to get named personally. 

Also, note that an eviction is just a civil lawsuit seeking possession of the property and usually also money.https://www.cumberlandcountypa.gov/FAQ.aspx?

People seem to forget that as an owner you ARE the HOA, and I don't think most people realize that a good HO6 policy has coverage against special assessments.I will also chime in that an older well managed building (preferably without elevators) can be a much lower cost risk than many of the larger newer complexes in Denver many of which have had litigation against their builders already, and whose taxes are often double or triple.  

A bit over a year ago I graduated with my 4 year degree in Civil Engineering, and I got a job in Montana where I am doing Structural Engineering primarily for custom luxury homes.

Thanks for ending it on a civil note.

I would definitely let them know ahead of time , about your plans to subdivide and see if they are on-board.If yes then next step is to hire a Surveyor(to see easements/boundaries) then go to a local Civil engineer to come up with a site plan making sure there is access to all lots.

I think an LLC for each property is over kill but it may make sense if each of your properties has a lot of equity in them.It is best to bring your litigation concerns to an attorney and insurance agent to see if they would be able to solve them with either an entity or added insurance coverage.

I see no reason to get the police involved, and they probably wouldn't do more than tell you it was a civil matter anyway.