and it doesn't work like that, especially with prices and interest rates high. 

I have some YouTube videos that may help with some of your questions and always happy to have a call to dive a little deeper. 1. which development(s) tends to be the best for ROI/have the best occupancy rates? 

Many of these lenders allowing 2nds behind them are more expensive capital (10's - 13's in our current market [high rates - but now showing signs of coming down]).

However, prices for a comparable 5-bedroom home in Washington are significantly higher, likely around $1.5M or more, which would mean taking on a new 30-year mortgage with 6+% interest rate and limiting new investment opportunities.2.

While may not have high amount minimums, they may have a minimum $ threshold for cc processing, Ours is $0.60, with a discounted plan that could be a few as 8 records.

However, some investors don't mind this strategy if they prefer not to put a lot of liquid in up front and plan to refi out within a few years of closing (which seems to be a great option with the talks of the FED reducing interest rates this year).It really comes down to investing in a growing market, in a good neighborhood & building a great team to support you.

Even though buffeted by high interest rates and spiking insurance premiums, overall prices are still rising.

Of course back then we were getting “screwed” with 6-7% rates.

If so what are the interest rates on those debts?

With Minoan you can discount that 20-25%.