I was thinking of investing one day a week (for free) at my local real estate/house flipper office in the area.I was thinking of donating my time to experience his practices.should I approach him in a casual way offering to donate one day a week in his office, or should I set up a structured internship agreement with him, dictating time of services.Bottom line casual or structured agreement?

Check out Dragon Dictation, that sounds like the app you described

HUD dictates occupancy in housing and has guidelines as to size of rooms required for a bedroom, as I recall it's 70/80 sq ft at least 7' wide (allowing a bed) and ceiling averaging 7' or more in that calculation (like attic spaces).There are gender and age requirements, where small girls and boys can double up but older kids must have their own room or be with the same gender.

So I know a little bit about this kind of tenant.Start eviction proceedings immediately.She could be the sweetest person in the world, but you can not allow her financial situation dictate how you run your business.

Each local Association of Realtors have their own MLS systemThe IDX system is a group of Companies that have agreed to advertise each other’s listings from the MLS database.The database structure and fields are dictated by the MLS system employed by the Realtor association.

Now, who has a bet going, fess up, we know betting is illegal but circumstances dictate custom, any weird bets going on? 

The area  mostly dictates the most profitable model and the neighborhood and house matters.   

Your specific circumstances will dictate the right approach especially if you discuss it with your CPA.

My advice to the OP is to read and follow the dictates of the contract he enters into, don't accept either my or Bill's suggestions.Also, the buyer can but doesn't have to identify the lender in the contract. 

Your state and lease will dictate what is first and what gets paid later etc.