Educate yourself on the strategy you want to pursue - fix & flip as you said, and then take action.Best of luck!

Each house clears 300 profit a month.

Everything is gravy, expect I've been stuck with this gross profit of 25-30k on every house.  

If my low ball offer is accepted, and I end up spending a total of $5-7,000 (adding in extra for labor and any surprises)  on repairs, with an estimated monthly income of $650-700 in rent, and yearly taxes at around $1,000 I'm estimating I could make a pretty decent profit, according to my math it would pay itself off in less than 3 years.

Since you've already identified that you'd like to pursue the buy and hold strategy it may be good to just start reading books on the buy and hold strategy.

It's always prudent to to consider the cost benefit analysis of pursuing any legal action. 

By Value, I mean that Projected Sales Price - Cost of rehab - purchase price leaves a reasonable amount of profit to make it worth it.On Auction.com, I participate in Auctions every week where I have physically gone to properties, tracked down previous owners, done all kinds of analysis to get an understanding what the rehab cost may look like. 

I also have my brother helping me as far as paying down the mortgage or if any expenses come up, once the mortgage is paid off on the duplex we’re either going to keep the property and let it cash flow or sell it and split the profits from the sale 50/50 since we’ll both be paying the mortgage on the duplex.

Base your offers on comp value not list price and try to stick to a formula that includes all costs and a decent profit.

A few banks started to do this and saw the profit in it, then other banks were not as profitable so they lowered there standards and then we came to the whole fiasco of forging documents, lying.Case and point I spoke to someone last month starting a fund with 0 I repeat 0 experience in what they were investing in.