For instance, I won't ever plan to fund cap ex projects out of cashflow. 

For example, many new investors forget or underestimate vacancy, maintenance and cap ex.

Assume you can turn your $110K asset after selling costs into 3 Memphis units that each cash flow $200/month after realistic PM, cap ex/maintenance estimate, and vacancy estimate (a bigger challenge than it may seem because maintenance and cap expense do not vary that significantly base on the rent as much as the unit profile (number of bathrooms, square footage, etc.); cheaper rents have a higher percentage of the rent needed for cap ex/maintenance. 

My price is directly derived from my valuation, and these owners have mentioned that the cap ex, maintenance  and management allotments are to high(I'm using the standard %'s) which makes my offer to low.

I heard about Bigger Pockets from an ex-roommate who was involved in real estate when we were discussing ways to invest years ago.

Any Cap Ex funds needed will be pulled from equity as well.FeedBack would be great!

.$450K purchase price, 25% down...30 year fixed rate mortgage at 5% on $337,500 is $1,812 per month...So if you have zero vacancy you'll break-even on the mortgage...And then burn money on maintenance, cap-ex (likely very limited), any vacancy, property taxes, insurance, etc.Consequently, you really, really, REALLY need that home price to go up. 

Property will cash flow $494 after all expenses, cap ex, etc. and will return 16% cash on cash.

Would you pay more than the “average” investor for a 2015 build because you loathe the idea of cap-ex?

There should be plenty of cap ex margin in there.