The other duplex was until recently my most expensive property.

The general rule of thumb for single-family rentals is the 50% Rule: that half of the rent will go to non-mortgage expenses.

@Karim WahbaSetting up a fund vs syndication for flipping homes comes down to scale and structure.Syndication: Typically involves a single asset, which can be stupidly expensive in terms of cost/time for just one flip unless it's a high-value property.

Can you purchase a property with a Hard Money loan and then refinance into a different type of loan to have a lower interest rate?

These include depreciation and all expense deductions. 

Finally, another offer and another nit-picky list of non consequential stuff to fix (including a small tear in a window screen and a front step that had settled and was now 1/4 inch lower and out of compliance)!

Located in: Trenton, NJ  one thing to realize and talk to your accountant about is if you assume it - do you assume it based on his cost basis, which could be a lot lower than the property value and then when you do eventually sell it, you could be hit with a nice capital gains bill. 

I also considered Safely, but they're pricing becomes very expensive for MTRs

Use the time to find a less expensive place to move to.

Is it effective in all lower 48 states?