I'm getting ready to rent out my first home (hurray), but I have some moderately used carpet, and a moderately sturdy swing set. 

I build them to be sturdy and to last, not for re-sale. 

Redoing a couple of small kitchens. 20 years ago there was nothing wrong with basic light oak cabinets. Now everyone is doing painted, but I'm unconvinced that in 10 or 20 years it won't seem odd, and I'm also dubious...

County’s only off-leash dog beach.

A con is that every time we have someone staying in the guest suite, I have to walk my dog on a leash so she (german shepherd) does not go scare our guests.

They need to keep their animal leashed or otherwise contained (electric fence, temporary fence, outdoor kennel, etc).

The detached garage is sturdy but would need a new door and garage door.

@Esmeralda Garcia Your leash should clearly stipulate that the property is for a residential rental use only.

But I am also tied to a leash, and working a job I don't like.

I pay for slightly better than minimum stainless steel (ss) appliances, and stackable washers and dryers: fridge with gray sides instead of black (unless I’m putting it in a cabinet, then just make sure the handle is ss), but don’t splurge for an ice maker unless included (150ish more), Range has sturdy Grates with ss knobs, top and behind knobs (150 more) and is usually a 5 burner, dishwasher is solid ss with buttons on top ($100 more), over range microwave more stainless with a look similar to the range (25-50 more).