I have a sub to like question along the same lines.I own a STR that is performing well (30% COCR) and I want to scale my business.My parents own a few properties in cash.

XYZ accepts profits from the child LLCs for the year. 

My parents own a few rental homes.

Howdy @Todd Powell@Dave Foster  @Richard ShermanThis is where structuring your entities in a Series LLC (Parent, Child, Child), as Richard did, as apposed to individual LLC becomes beneficial. 

My parents are interested in supporting me and they are at a stage where they have a comfortable amount of money, they have excellent credit and they have no plans of taking out a loan in their lifetime. 

Next year my parents plan to sell two of their rental condos and exchange for a single family home that they will rent out to me.

.- always have the parents co-sign the lease.- make a manual for them. what would your own kids be calling you about when they first move out on their own?

Would you like to reject that serial child molester from living next door to a family with young kids?

I'm also quite certain he has an alcohol issue, as I always smell alcohol when we speak in person.When the tenant first moved in, he would wait for my wife to leave for work and then rush outside to talk to her, often presenting significant problems he was facing – hospital visits, sick parents, cyber hacking, and more.

I would ask your SDIRA custodian but its my understanding having a SDIRA that you cannot lend yourself money nor lend to a child or give the child any monies.That would be prohibited transaction.