Because laws and customs vary considerably by state, the first thing I would do is find a good RE attorney who is well versed in private lending IN YOUR STATE.Knowledge of SAFE act considerations, Usury laws, etc can save you a boat load of money and headaches later.I would probably also suggest either placing your funds with a lender who has a pool (you'll get a lower return) or working with a broker very experienced in private loans.

Of course, it's going to be hard to get your first customer, but if you make 100-200 phone calls, you'll get one.I'm currently furnishing a place to get market ready and it's the worst.

The Midwest seems like a popular topic in this thread.

A good GC should be doing this, but if they are not detail oriented, it may fall on the customer to make sure the details are there.It's so important to be ultra specific when writing a Scope Of Work and Contract for a construction project - of any size, even a small job can go south without the specifics being spelled out clearly. 

Quote from @Andrew Rees: In this case you're running a business...Therefore:1 - Be professional, 2 - perform excellent customer service!

This will tell you a lot about the popularity of the area.I can also help you figure out the rents of an average 2/1 unit in these area if you like.

If you decide not to do a DSCR loan, the second home loan is a popular option, but there are lots of drawbacks for investors as it is really a product made for regular home buyers.

Their customer service leaves a lot to be desired but the rates are great and they’ve always covered claims. 

Rural or naturistic areas that are within 300 miles from a guest’s home/drivable are popular markets right now due to the pandemic (I don’t think this will change anytime soon).

I’ve referred her to my customers as well and have had good experiences.