You can learn to do this independently or get a rockstar REALTOR to lead the way.

Brokers either get leads through a network of brokers in other disciplines or organic contacts.

Making a well-rounded decision can lead to long-term success in real estate investment.

In my experience, a suit for specific enforcement of a real estate purchase contract is not particularly complex or fact intensive that would lead to extensive time needed for discovery. 

I only hope my own posts recounting what my hyperlocal experiences have been like here in Pittsburgh, the self-styled "Paris of Appalachia," do not in any way encourage people to follow the OP's lead.

It will likely be a web of contractors, engineers, and architects, but some those are ultimately leading to the developer. 

Unfortunately, there are times when being accommodating and making exceptions can lead tenants to take advantage of the situation.

I've only ever sent out an offer like that once, and that was to a preforeclosure lead that refused to discuss the property, instead telling me "that's not how real estate works, just make me an offer".  

The problem is, everybody puts together deals they think are good, but in my experience as a lead underwriter, asset manager, and now fund manager, I throw out 99% of deals that are put in front of me.Listen to podcasts about passive investments and how to conduct due diligence as an LP. 

However, that will likely lead to increased turnover and increased vacancy time in between tenants.