Personally, I would get your title company of choice involved.

Somce we didnt have time to switch lenders as our contract is up the 28th, we had no choice but to stay with the lender.

I am only planning to buy a couple SFR properties  cash from my SDIRA to rebalance my retirement portfolio and the Deltona property seem to be a good choice...

Then come back and let's pick up where you left off.I'd bet Troy a steak dinner you don't follow thru on the challenge but I think he's smart enough not to take the bait. 

However - my question is... as a newbie with zero contract work but willingness to learn & get my hands dirty along with some money to invest would going in with an experienced investor using my capital & his knowledge /experience be a smart move?

You must be smart to make enough to afford a 4k mortgage.  

Be smart and you shouldn't have anything to worry about.Furthermore, the city is currently undergoing massive redevelopment; a new sports arena, an international bridge crossing comes soon, streetcar line downtown, and billions on top of billions put into redevelopment of vacant/derelict structures.

From there, when interviewing prospective attorneys, consider asking questions that give you a sense of whether the attorney (i) works with other real estate investors; (ii) fits your budget; (iii) makes you feel comfortable - asking those seemingly "dumb" (but actually smart questions) is important, so being comfortable asking those questions is huge; takes the time to thoroughly explain things (you don't want someone who glosses over topics and leaves you confused.

Hey BP, When assigning your contact to your end buyer it is mandatory to put and/or assigns or can I have a clause like: example- "Buyer has the right to close in the entity of their choice."

Get a lawyer when you need a lawyer, but right now you do not need a lawyer.You have two choices (others of course):1.