If I still buy a house next summer but don’t start school until 2026 and continue to travel for work, I believe most FHA loans require you to not rent out your permanent residence for the first year following your loan?

There's no set amount and no stranger on the internet can tell you what should work for you. 

We then spent around $30,000 out of pocket on renovations, including repairing the roof, upgrading the electric panel, installing new HVAC, and putting in a new kitchen.After completing the work, we refinanced with LendingOne using a 30-year fixed-rate DSCR product at around 7%, which resulted in a net cash-out of approximately $15,000.A couple of things to note:I'm out of pocket on this property for around $40,000 ($25k down, $30k rehab, minus $15k recaptured).I'm thrilled with this amount since it's far less than our "normal" 25% down strategy would require based on the higher value.The property appraised for $330,000 after the renovations.The key point for me is that this property is now netting around $800/month in cash flow.

I assume the lock works just fine to get in but I am 7 hours away and can't test it.

., which you in turn send to them, they tell you how much they'll buy the note for, then you tell the note holder how much you can buy the note for, by offering a bit smaller amount than what charter is going to pay you.It's says on their website that once the note holder agrees to sell, either the finder can do all the work, or they (Charter Financial) will do the work for no fee to me, to buy the note.I found out about this company years ago, know they have an A rating, with 1 complaint with the BBB in the last 12 months.I just want to see if anyone on BP has made money finding notes, annuities, lottery winnings, business notes, mortgage notes, etc., by referring the notes to Charter Financial for a referral fee?

There are plenty of HMLs here on BP and other reputable companies to work with.

You will also need to work with a GC. 

Appraisers depend on getting work from banks so they are not going to put their name to something that has no backing in fact. 

Traveling healthcare workers often work 2nd or 3rd shift so blackout curtains and a sound machine are nice.

We work in the healthcare field and aware of pay cuts to travel nurse salaries and contracts.