@Amit GuptaYou absolutely may not do that.IRS rules prohibit any direct or indirect transactions or provision of benefit between an IRA and a disqualified person. 

Now, my question is if we can buy land with one of our LLC's and then build using the others 1031, would this work or having two separate transactions would make things complicated?

Hello allMy brother and I have created a complicated mess with our real estate transactions over the past decade. 

Cross-reference Airdna data with Rabbu to get a more accurate picture of potential revenue2.

I was wondering if there are any regulations regarding managing accredited investors money in real estate transactions…Say you wanted to pool four or five investors money together, though they are passively investing.

If the source of funds used to acquire the property was an unsecured loan or a loan secured by an asset other than the subject property (such as a HELOC secured by another property), the settlement statement for the refinance transaction must reflect that all cash-out proceeds be used to pay off or pay down, as applicable, the loan used to purchase the property.

I know that in a regular transaction it can be done, but since the contract is being assigned to me is this possible?

Any seller can instruct their Agent to accept any offer even if the Agent disagrees.In a retail transaction, the seller at the least has the assumption of a Trained legal expert to give them their opinion, but is not obligated to accept it.  

In select larger markets, some agents have the luxury of choosing residential vs commercial, buyer vs seller sides of transactions.

Some "REIs" will engineer transactions for failure for the tenant/buyer.