I knew you'd be able to recognize this  Joe. 

I have been interviewing companies and have narrowed down a few.

Of note, interest rates are an influencer rather than a driver (eg interest rates in the us were low at the time of the crash).Their are a lot of purpose built student housing units being built in Waterloo so there could be an over supply issue with student housing there.Edwin Szeto interviewed Tom Karadza on his podcast recently and he spoke about starter homes being less vulnerable to slumps because there is still demand for them and they go down in value less...thought that was an interesting observation.

Do I need to interview a ton of them before committing?

Since then I've gotten familiar with my area and recognized average expense ratios for different properties based on conditions, level of finishes, and rental rates.

I have already met with a few brokers already but would like to interview more of them, that are investor-friendly.

A letter sent by USPS is always recognized as legal notice.

Are there any crucial and specific questions that you all aim to ask in an interview with them?

That's Intelligent Luck.There are actually two requirements to be lucky:1) You MUST recognize the Opportunity AND2) You MUST be prepared to buy that Opportunity.Example:1) Recognizing the OpportunityProperties in the Flatbush area are now much higher than they were 5 years ago.

When he came to tour and interview with myself and my husband, he stated he owns a local retail shop in town and plans to put 4-5 people in the house.