To permanently affix a mobile home to the ground requires a foundation - just “tying” it down doesn’t qualify.  

Using a HELOC for the down payment on the second home might be an option, but lenders may require you to wait a few months post-closing on the multi-family before approving new loans.The BRRRR-style approach could work if you can renovate and refinance quickly, but make sure the timeline aligns with your lender’s requirements.

I work with several who go to 600 or don't require a FICO for commercial at all.  

A deposit on that site is required to bid.

Yes, sewer clean outs are required on new construction, but on a 1947 rehab house that didn’t have existing clean outs, is it really possible that I can be required to install them?

Also start talking to lenders now to understand their requirements 

It's easy to obtain, costs very little, and doesn't require extra, on-going effort to maintain.

They're all obvious and simple, but do require work.

Lower Start-Up CostsTraditional real estate investing requires 20%-25% down, making it difficult for many to scale quickly.

At one point, this bear got into the dumpster 5 nights in row requiring us to clean the area each morning.