Find out exactly what the problem is and the outcome he desires.

Hopefully, I'll never have to use the termination addendum but I like to be prepared for all possible outcomes.

Somehow they often do not care who they sell them to and their prospective buyers end up not qualifying to live in the community, and that is always an issue.

Primary Team members are experience in what you are proposing to do like Attornies/Lawyers, real estate Agents/Brokers, CPA's (or accountants you know and trust), Inspectors, Propery Managers, General Contractors, and Handymen.In the beginning especially, always do the math analysis and try to look at prospective properties before you make an offer or at least have a clause in the purchase contract that allow you some upfront time (about 10 to 15 days) to make a detailed inspection and possibly back out of the deal without a penalty that will hurt you too much.  

Ask the prospective tenant about them.

They typically fly down here to prospect the territory and interview as many local REI people as possible.  

Do not cut any corners to make something (like an estimate) look good on paper but not in real life.Always remember to do the math analysis and try to look at prospective properties before you make an offer or at least have a clause in the purchase contract that allows you some upfront time (usually 10 or 15 days) to make a detailed inspection and possibly back out of the deal without a penalty that will hurt you too much.Find/Hire a Team of local and experienced professionals to help you get things done.  

The court clerks, and judges were familiar with me and my documents were in order so usually simple outcome. 

Some areas are very dependent on a couple large companies leading to swings in prospects.

Prospective tenants will want to view the property.