I will just add the bird's view.1.

He felt that if I was engaging other lenders and not committed to working with him, that I may not be a good fit and he was going to invest his time with people who he knows will work with him.I totally get his point of view, but what is normal and recommended for investors (I am looking to house hack the property I purchase)?

The 4 unit property is in average condition, nothing special so maybe you're correct that they're viewing it as high risk. 

Although like Mike said since its closely targeted, giving details of you intentions and interest in the property might not be bad idea.

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Can you send me some details?

If you look at some of the over-contribution cases (such as Summa Holdings) the IRS attached a value to what they viewed as over-contributions (payments by the IRA owner/affiliated entities for "services" provided by an IRA-owned entity in the case of Summa). 

It seems like these posts always lack in details so I will try to give the most information possible:Sale Price: $575k  Current rent: $6825 (this is topped out, no room to increase)Loan terms: 20% down, 20 year 5 year balloon  5.75% interestsManagement: 7%Insurance: $3200Maintenance/capex: $5000Taxes: $8900Vacancy: Using 5%Property is C class and in good condition (new furnances, roof, etc) No common areas.

You will definitely want to consult a local attorney that specializes in landlord/tenant law for the details.

And if you are qualified as a GC then providing a real repair estimate would be a source of credibility that so many other wholesalers just don't have so I'd definately view that as a positive.