For multi-families what do you consider a healthy profit after paying mortgage etc.

Non for profits?

@Jeff Mills the basic problem with rents in that range: $450, is that variable expenses quickly eat up any profit.

Brandon & Heather Turner's The Book on Managing Rental Properties: A Proven System for Finding, Screening, and Managing Tenants With Fewer Headaches and Maximum Profit would be a great start.

So the question is this... what typically does a rehabber look for in terms of relating cost of repair to profit. this house is 50k profit... just so I know what to sell the house for and stop wasting peoples time.

30k profit no way on a $1m home.  

Higher profit is fine but you may be dealing with interest rate change, market condition deterioration.

-Type of property-Preferred ARV range-bed/bath-sqft-desired profit margins-closing time frame capabilities-areas your prefer-any specifics you may haveLook forward to hearing from you,Heath

To those Multi unit investors, how long has it been taking you to turn over your investments to start turning profits so you can refinance and cash out?  

The great thing about real estate is there are many different ways to profit from it and many ways to get it to work for you.