After paying the mortgages (debt service) each unit only produces $300 / month cash flow, but your overall cash flow is $1500 a month.  

Then you need to negotiate a price that is low enough that you can make a living and still pass along a healthy profit to the investor.To me it seems like a difficult, thankless, and soul-sucking job, so I'd recommend you stick to being a realtor, but I've never done it myself, so take my advice with a grain or two of salt.To answer your specific questions, you usually need to bring the full bid amount in cash or cashier's checks (at least in my state) or your bid is forfeit.

There’s still room to make a healthy profit on the flip, but I’m beginning to think I need to dust off my Plan B.Plan B would be the BRRRR strategy and so right now I’m comparing the two options, and the more I look at this, I’m beginning to wonder if BRRRR should’ve been Plan A!

Also there seems to be a healthy community of professionals.I'd love to chat with you as I want to start right away.  

When it comes to something like this, I am hiring an Attorney to produce an iron-clad document.  

My wife is a 33 year veteran and 95% of her business has been referral the last 20 plus years.. she spends literally zero on marketing although many top producers like her do spend a good amount on marketing.. but in wholesaling its constant you must be spending money at all times. and it totally depends on the market but she closes 10 million plus a year for as long as I can remember.. last year she did just under 16 million.. with again not more than paying her license fee's and some flyers and other minor things.

Duty to Inspect - Advised that inspection take place once a year, lease renewalOwner who owned and rented a piece of paved land was sued when a customer buying produce from a man he rented space to, slipped and fell.

If you need a few evergreen shrubs under that living window, a tree on the curb strip of corner of the house, summer flowering shrubs, low maintenance color, I can hook you up this week and early next week with healthy buffalo pants!

I rely on a screening service to produce a credit score or a tenant-screening score.

@Ashish Acharya provided a long explanation why it is so, but the bottom line is: zero tax benefit.If, on the other hand, you're planning to be a self-employed producer or director - i.e. work for yourself - then yes, this training could be written off once you actually start this new business.PS.