Realize that each little problem is made much more exaggerated by the producers to create "drama".Realize that they often gloss over very important aspects like permits, extra costs of closing deals, etc.Otherwise, most are a reasonable facsimile of what rehabbing is like and they do point out some important pitfalls that many investors run into on a typical job.

Most commercial RE transactions use a single broker for dual agency (where the law permits).

A house is usually the best purchase, if you can afford one.If you buy a condo to live in yourself, look for a building that does not permit tenants.

Examples of places you can find them:If they pulled a permit on a house the notice of commencement may include their phone number.If they were in a lawsuit and represented themselves, most forms will include a phone number.If they were a landlord and did an eviction, the 3 day notice or complaint will usually have their phone number.There are quite a few areas the info will show up in public records.Social media is the hands down best way to locate people.

This deal can go south quickly as you have your additional costs on top of your construction bids of closing costs; financing; insurance; utilities; property taxes; permits; realtor commissions; NJ transfer tax etc..

Then you have to add in the development costs (connection to utilites and permit fees).

Account ClosedI've never seen an HOA that would permit the subdivision of a condo into smaller units.otoh, I have subdivided a building into smaller condo units, but I owned the entire building and drew up new condo docs.

You need to check with the state/province department of the environment and the local municipality as decommissioning of USTs may, or may not, be permitted.   

I have the ability to pull permits and do the electrical, plumbing and HVAC my self. and I have enough construction contacts to cut out the business and hire the tradesman my self.  

@Mike BarryWhile quality of work is a paramount concern, there are other reasons you do not permit tenants to affect repairs and modifications to your property.