Having extra liquidity will also help as you may run into some growing pains as you begin your journey as a flipper. 

Plumbing wise city of st pete charges about $1200 for the extra meter and the plumber fee depends on the trench, length and trees they have to cross, I've seen prices in the $4000-$6000 range.  

Sharing profits with your GC can give them extra incentive to do quality work and stay on schedule. but it's essential to have a clear agreement in place to avoid misunderstandings.

Now the question of 10% down to get an extra 3% concessions sounds good.

The reality is the opposite - if it's not in writing then the PMC doesn't have to provide the service or can charge extra for it!

We recently bought a property with an extra lot. 

And he knows who's working regularly, who's only off-and-on, who's going through troubles, who needs extra work.

Unless you're passionate about real estate and have lots of extra time to learn and become an expert at it in addition to your day job as a doctor, I'd honestly just stick with something more "set and forget" like mutual funds. 

Just factor in for extra time and extra money 

On listing side, again was fully compliant but now just adding 1 more disclosure and agreement to it all drawing it all out in "crayola" as seller defines THERE choice, that it is there choice, and most importantly the extra clarity on dual agency because THAT is biggest impact I see coming, a whole lot MORE dual agency.