I would also recommend having a mentor available to walk you through your first transaction, there will be questions that come up that can be tough to figure out if you don't have the right resources!

Appraisers already have a tough time properly valuating ADU's since they are fairly new and they do not have enough comps to go off of typically.

If your property is in tough shape or is older; I would increase this reserve, but this is a rough calculation for a property that is in good condition, not in need of major capex.You can also increase this annually or do it on a monthly basis; i.e. $25 per unit, per month goes into a savings account and I will increase that x% per year. 

To be the one who gets that repeat business, you have to prove that you can find deals that others can't.

It is tough (extremely tough at the moment), but there are lots of tricks and strategies to help make it work. 

Tough to find a cute little house on a corner lot for $15k!

Tough market to buy?

In this situation we needed to prove to the county that the home was worth less than tax value so I walked the home with an appraiser, was able to show how much work needed to be done, provided documentation from my contractor.

If you want appreciation, NJ is tough now all over because everything is selling so high, but there are pockets that can still work but it depends how far from Brooklyn you are comfortable with.

It's going to be tough to force anyone to move.