Wholesale fast approaching [URGENT]

[Account Closed]

We found a home that could be renovated and held, but were looking to build our capital for now so were thinking of putting a contract on it and just wholesaling, however we have a ton of questions about the process, like; 

1. How do we get an accurate valuation (who all can do it) 

2. How do you comp such a property (its a 5br/3ba SFH, thats been split into a duplex, on 1.37acres, zoned business but last used as a residential)

3  We want to put a contract on it with contingencies regarding the inspection, partner approval and also an assignment clause. (Is that some things I can download or draw up myself of should I seek a pro?)

4. Once a contract is on it, how am I supposed to show/advertise it?