This is a pretty hard question to answer as it depends on what your goals are, but I'm doing a ton in the Cleveland and Columbus markets and seeing great success. 

Either way, if you link your bank to Quickbooks Online, REIHub, or other online accounting software you will be able to manage each feed pretty easily.

The renovations are going to be higher end and the house is pretty simple with a detached garage but no closets in the house. 

This is pretty much 0!

It was pretty scary.

I’m usually pretty good about getting an agreed-upon price , but this one slip past me.

Also, bitcoin in this instance is a pretty glaring red flag.

Memphis has a pretty affordable housing market and tends to offer solid rental yields, which might align well with your goals.

The potential for a loan call is higher and higher with sub to the more parties you involve if that makes sense.Trying to take down four homes sub to and then do remodels to them all, and then list them on short-term rental sites, and get full permitting and ok for not just the STR, but for your renovations and all prior renovations maybe done without a permit, while on subto, sounds like a pretty big mess to me.I would consult with a sub to specialist and prepare for the potential of having all the loans called at some point.

It's the worst because it's pretty difficult to navigate if you don't have someone experienced to guide the way.