I do single family "off market" that I take over with owner financing, subject to, wraps and lease options.

@Kwanza Price - Syndications are a great options and even some QOZs. 

I recommend that you find a trusted or recommended Mortgage Loan Originator (MLO), who can give you options for property-based loans (mostly investment loans) and they don't use your taxes but the P&L of the property.

HELOCs are definitely a good option for financing BRRRRs.

If you are skilled in each of the areas above, and you have enough in reserves to cover the costs of when things do not go as planned, then you can likely attract money from private money lenders who want to get a return on their money and they see lending to you as a low risk way of earning a better return than in the other passive investing options they have. 

Happy to chat through some options.

There are only 2 options for those.

@Jerry Chilimidos,Here is a list of lenders who specialize in lending to IRAs and 401Ks:https://www.biggerpockets.com/member-blogs/2810/50272-list-o...I don't know where your rentals are located and how they are performing but selling might be an option vs doing cash-out refi.I would certainly consider option C.

The first option will give you continuous headaches with a certain likelihood that the behavior may get worse (not paying at all and more damage).

I have two options.