Get a pre-qualification letter for a regular bank loan and for a hard money loan.

Both agents should have known that you typically do Not get 60-70 days to close after the official shorted bank Approval letter, 30 days is typical.  

Need advice on if it looks good.here are the stats- property near Leschi 6 blocks from beach in central district.ARV is 610k-625k high endPurchase price- 360kRehab costs- 80kLoan closing costs-12k120 hold costs- 16kMonthly taxes and insurance-$375Utilities est. monthly- $100Realtor selling fees-5% $29,500 (we have a close friend for the agent.)Sale closing costs- $2,500Excise tax- $10,500Estimated profit range- $100k-115kDoes this look like a good deal am I missing anything?

The building code may also want you to use some special caulk/sealer between the door frame and the wall, before you put the trim on; this caulk swells up when hot to block smoke and gases. 

See below for waiver letter 

If it is worth being trained by a brokerage, how do I write my cover letter and resume in such a way as to make me look like a useful candidate without lying?

You can't get an offer looked at seriously unless you have a pre-qual letter anyway.

We would live 3 blocks from the university so college students would definitely be our market.

As well as eliminating the redundant door (literally three feet from the rear slider) by concrete blocking the hole closed.But in the short term I have a contractor rehabbing/replacing the damaged door - at his discretion of the best / fastest course of action.  

Check the crime map, but it's block by block over there.