Despite popular option the fed nor a president has direct control over long term interest rates.

In my mind, you only have control over how you market the property and how your respond to leads and where you price it.  

This would allow you to keep the current mortgage and keep entire control of the property.

Yes, it's actually possible to control mice by acting like an adult and dealing with them.

Can I dictate the remitter listed on the check (LLC vs controller vs IRA) based on the needs of the transaction - my local bank would at least give me that much latitude - or is that determined by these banks?

Live in one unit and rent out the others to cover your mortgage.Seller Financing: Negotiate terms with the property seller where they act as the lender, often requiring a smaller down payment and bypassing traditional underwriting.Partnerships or Joint Ventures: Partner with an investor who provides the capital in exchange for a share of the property’s equity or income.Lease Options: Use a rent-to-own agreement, which allows you to control the property while saving for a formal purchase.BRRRR Method (Buy, Rehab, Rent, Refinance, Repeat): Acquire a distressed property with short-term financing, rehab it to increase value, rent it out, and refinance to recoup your initial investment.Pro TipStay in close communication with your lender as you approach your next purchase.

This allows you to control renovations and decide whether to self-manage on the back end.

Alternatively, some purchasers want to control the process in return for more certainty.For a non-delegated correspondent loan, the loan purchaser will get involved and direct all processing decisions.

I would say that my problem or "bad" experience isn't really with RTR directly, its more so with their affiliates like the property provider or lender or property manager, etc. and I don't know how much control RTR has with their affiliates. 

Accounting System with "Control" ChecksSoftware to manage revenues, expenses, payroll, and taxes, etc., and ability to verify receipts and transactions (the verification is done by upper management to check and validate the revenues and expenses)4.