As a general who does a remodel project for a seller but the arrangement is to get paid at closing.

Because the 401(k) is an employer plan instead of an Individual Retirement Arrangement, many of the plan-side features are more powerful, such as higher contribution limits, the availability of participant loans, etc.Structurally, you can achieve full checkbook control over either an IRA or a Solo 401(k).  

The fact that your 'turnkey company' is asking you to arrange inspection and cost for sewer would be worrisome to me quite frankly.

A business or real estate attorney or estate attorney will not know enough specifics in the detail to arrange true protections of combining cost efficient LLCs and managing holding companies and trusts to shield you from liability.

If it's an agent, they can also arrange an inspection.  

Let me share the arrangement I am doing with my PML.

The answer varies greatly depending on the arrangement of your deal with the owner/landlord but in general you need renters insurance to cover your contents (since you are renter presumably) and then excess liability coverage for your short term rental activities.

Arrange to pay them a reasonable down payment and monthly payments.2.

So basically, to know if you are getting less return than the direct to Rise48 people, Spark would need to disclose their arrangement with Rise48 and you would need to look at your own subscription docs with Spark to see if they outline their own fees and carried interest.Although, I can speculate with pretty strong certainty that you are receiving a slightly lower return than direct to Rise48 investors.

If they want to seller finance it from you, that would be difficult since you're already the mortgagor on the 1st seller finance arrangement.