The contributions can come from the earned income only.You can also rollover any other retirement accounts (old employer 401k for example).All profits/income must go back into your SDIRA.You don't need multiple SDIRAs, you can make future contributions into the same IRA.There are no custodians that have zero fees.

I have a 401K from an old employer that I’d like to rollover.

Therefore, I offered to "roll over" my PML into another unsecured loan. 

Many of my clients do this just to be able to roll over from old IRAs and 401Ks from former employers.Good luck and keep thinking outside the Wall Street box.

@Jahan Habib The rule of thumb in the financial world, that I've observed, is that when you're offering to move a good amount of $ to a company, they are eager to help you do so as quickly as possible.On the other hand, depending on where you currently have the money, that company may drag its feet on the rollover/transfer - when you're moving a good amount of $ out of a company, their incentive is to give you as little help as possible (not to mention charging some kind of exit fee in many cases).To be safe, mainly because of the latter (feet dragging from the company losing your business), I would estimate it could take up to a month.Yes, it is possible for your IRA-controlled LLC to receive financing, but my understanding is that true non-recourse financing is still a little challenging to find, that there are only a handful of companies doing it.As far as fees, "everything's negotiable" - be sure to ask for estimated fees up front.

@Neil ShahiOf course, the threshold considerations are whether (i) you are eligible (i.e. self-employed with no full-time w-2 employees) and (ii) retirement funds in an account that you can rollover (i.e. former employer plan and/or non-Roth IRA that is invested in investments that can be liquidated an acceptable cost).Assuming that you cross these threshold issues, here are some additional comments/considerations:1.

Knowledge of ROBS (Roll Over to Business Startup) would also be helpful. 

Planning to roll over equity using 1031 exchange in next 6 months.

My question is if I acquire this property will the permit for the multifamily dwellings and "commercial space" roll over to my ownership or will i have to request the permit again/change the zoning ?

Also in Delaware, a lease will automatically roll over to a month to month lease if no renewal is offered and tenant doesn't give notice.