I would make the sub come to my office and talk to the front desk where his / her check was waiting ..

Alternatively, look into renovation-specific loans like the Fannie Mae HomeStyle Renovation or FHA 203K loans as standalone products for rehab costs.FHA 203K LoanPros:Low Down Payment & Bundled Costs: This loan simplifies the process by combining the purchase and rehab costs into one mortgage.Cons:Interest Rate & Refinance Requirement: Higher interest rates and the need for refinancing could reduce your overall return on investment.Fannie Mae HomeStyle Renovation LoanPros:Bundled Costs: Like the FHA 203K, this loan combines purchase and renovation costs, simplifying the process.Cons:Interest Rate & Refinance Requirement: Similar to the FHA 203K loan, the need for refinancing to extract equity and convert to an investment property might add to your costs.I am a loan officer so I have some expertise in this area.

Talk to you county tax office they should be able to tell you exactly how it works for your state.Also you can create self directed IRA'S with checkbook control or a self directed Solo401k. 

I would try to look them both up on the county clerk's office website for the county they report to live in... and maybe a few of the surrounding counties.  

@Mara Hayes you should be able to get your questions answered by any qualified loan officer.

Seller Financing on Market Properties:- Yes, it can be used for on-market properties with motivated sellers.I am a Loan Officer licensed in multiple states, so if you would like to discuss further please feel free to reach out to me directly! 

One thing to keep in mind is "less is more" when it comes to telling anyone including the Loan officer what you plan to do in terms of living arrangements.

Not in an investment property, but I actually did it in my office at home.

There are exceptions of course but we usually want to work with smaller, local loan officers and brokers are usually the best option - usually.  

Simple answer: If your current mortgage rate is favorable, a HELOC can provide flexible access to funds as needed for the renovation.Although, there are some different ways to get creative with your situation which I am happy to explore with you, as I am a loan officer.