There are DSCR lenders will allow only a single 20 or 25% owner of an LLC to sign a Personal Guarantee (other owners are not on the loan, or liable for the loan).

My apartment bldg has 6 units, so it's a commercial loan.

Lenders report a huge uptick in new loan applications.

You can purchase this with a low-money-down FHA loan. 

I got a HELOC loan on the home for $130k.

When this person goes bankrupt in the next recession, this loan will be part of bankruptcy proceedings.

If you need more to do the rehab, perhaps instead of partnering, you could get your former boss to do a personal loan. 

A Solo 401(k) may be advantageous for self-employed individuals, offering the potential for participant loans, higher contributions, and no custodian fees, as well as higher contribution limits and the option for tax-deferred or Roth contributions.This post does not create a CPA-Client relationship.

@Chinku Chinku how is paying the loan balance down going to help you reach your goals?

@Jerry Chilimidos I am not a CPA owever my understanding is any loans to your IRA can not be personally guaranteed.