On something that sells in under a week, its ok.

The realtor we used said we were grandfathered in under old rules, and he doesn't think they'd allow it.

The local companies are telling you they cannot estimate on the fly with any amount of accuracy.Yet you want a plug figure for this widely ranging number.Maybe think about using a best case worst case scenario and come up with two numbers.Budget for worst case (because it seems logical to do this), and if it is less, come in under budget.As to the soil engineer, this may be a reasonable person to get some percentage increases from.

Seeing longer DOM properties, but good deals are swallowed up in under 3 days.

I like James and his team, but that house has had some HVAC issues arise (over $1K in under a year) and that should never happen on a turnkey (or if it does, it should be fixed by the turnkey company under some sort of first year warranty).  

It's possible to do a transaction in under two weeks with the right Realtor in your area. 

You could also be able to get a property around Ybor for that price but it would definitely be a heavy rehab if you get in under 200k. 

@Nathan GesnerGreat first it was pace morby and now it seems BP is going to be inundated with grant cardone posts…

BiggerPockets has been inundated with "reviews" of Pace Morby and his SubTo community.

Done in under 24hrs.