That could definitely be a deal breaker.

To wit, Freddie will not go for a 7th financed investment property at all, meaning Fannie is the only game in town, and if there's something about your finances that Freddie would otherwise go for but Freddie would not (f. ex. 1 year of self employment tax returns), that means this would be a deal breaker.

There are many others you will find after going to those working your way through the circuit.

I don't think that this clause is necessarily a deal-breaker (and I could be totally wrong), but I'm taking on a hefty amount of risk in the case where I assign the contract to another investor without my own non-refundable earnest money deposit. 

Not having a pool isn't a deal breaker for most tenants and if you do rent a property with a pool, you have to either rely on the tenant to do basic maintenance (dip out leaves, empty skimmer, brush down steps, fill it occasionally) or hire a pool company to do service - and that ain't cheap. 

The breaker box is currently in a closet that backs up to the living room and so the most cost effective and time conscience way of dealing with it, is to open up the wall which will expose the unit to the living room.

The inspector has construction knowledge but also compliance knowledge, probably has more information on technical repair issues with mechanical, HVAC on different models and appliances.A contractor buys parts, say a GFI breaker, thinks nothing of it as it's at the store.

He is a RULE BREAKER.

Where someone illegally mix mashed knob and tube wiring with new wiring, but updated the breaker box.  

I need to have someone come out and take a look at a foundation crack, to see if it may be a deal breaker.