You have many question eman. Glad to see youre willing to learn.
You asked about strains: that is pretty subjective, most plants that finish under ten weeks should work fine in pennsylvania depending on your area of course. I lived in williamsport for a couple years and it got cold way early compared to my hometown in SE pennsylvaia. SO if your up north find a strain that finishes in september, otherwise i know people around my area whove had success with strains that stretch into november.
Haze hybrids: yes haze hybrids will definitely work as long as the flowering finishes early enough. I have an Amnesia Haze that i'm dying to try this summer
Pests: there are a ton of pests that will get at your plants, I suggest getting some type of organic insecticide and following the directions. I use Azamax (active ingredient azadirachtin) this covers 90% of pests you will encounter, is certified organic, and wont harm non invasive species like bees, small mammals or fish. Now deer are an obvious pest, and some burrowing rodents too, so put up chicken wire around your plants. Depending on your specific location termites may also be a problem. The myth is that termites only eat dead wood but thats totally false. When your plants get large and the stems become "woody" termites can invade, weakening the stem and preventing nutrients being moved from the roots up the plant. I had termite before and created a thread for it which you can find by searching, there are a few people with their own opinions but my most immediate solution was to use a Termiticide that was recommended to me by this dude from australia. It's called Dominion 2L and can be purchased online. Started using that and no more termites, but you must begin using it BEFORE they start attacking your plant.
Hope i covered most of it, I could go on and on about outdoor growing but i hope this helps. Check back in with your progress.