The owners at the time were directed to our Real Estate agent and she showed us the property as it was a good investment opportunity.How did you finance this deal?

I am creating a LLC in MD and am looking for a Resident Agent.

I will challenge you to find a single reputable source that does not show San Diego to have achieved outstanding long term return.- I posted a recent rehab that I added half a bathroom out of existing space and the comps showed that half bathroom added $50k of value.  

Sometimes I wonder if people just feel better about themselves to spend all those nights and weekends on real estate when, realistically speaking, they would have earned just as good a return (or pretty close to it) by investing in a stock market index fund and had way more free time in life  I realize my premise here is antithetical to the whole notion of BiggerPockets so of course bigger pockets hates me writing this, as do all real estate agents and property managers, but it’s the truth and everyone needs to think about it

Also you mention he has an awful reputation yet you acknowledged in your initial post you repeatedly buy properties his brokerage represents...not quite adding up.

I'm a construction management consultant (so similar to engineering) and investor/agent in the Boston area so I get the need to want/need to stay local.

half of my clients in Miami are Foreign Nationals, in todays market ive seen 7-9% depending on some factors but im not a lender, just my experience as a real estate agent

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

But also talk to your agent and get their take on this scenario obviously as well. 

One of the biggest factors in successful flips is building a strong team: contractors, agents, lenders, and property managers.