1) Any of these strategies is a good idea. Personally I use normal websites like Realtor.com run an analysis and decide at what price I could buy where it makes sense to both the seller and myself to make the deal happen. If you want "steal deals" you could employee a number of tactics but this will definitely be slower than traditional purchases. My personal stance is if its a deal that cash flows hitting a single is better than never swinging and getting the home run.
2) I've done a number of things that some people do not think about. One huge way that people do not think about is taking a 401k loan. After you refinance it if you choose to do so you can pay it right back. Alot cheaper than hard money in the long run. I've used hard money, credit cards, eating ramen for a year. Its whatever your comfortable doing to get the ball rolling.
3) All of my properties are in a number of LLC's. You pay extra for everything this way and noone wants to ever talk about it, higher interest rates, miscellaneous fees for closings, more headaches at the closing table, a higher tax return but you also get that liability shield ( in theory ) if god forbid something happens. Theres nothing wrong with putting it in your own name to save money I think in the beginning especially if your planning to house hack and use it as a primary residence and live there for a while. I think any "institutional" investor would say to create the liability shield but if its your first deal likely your not protecting billions of assets the choice is yours what you think is appropriate. If I could go back in time, of course knowing that nothing happened with my first few deals, I would have had them in my own name.
3a) Theres alot of what I'll call nonsense you have to deal with regardless if you use a realtor to close the home. The bank is going that you personally get alot of work done for them and you pay for it all, unless your paying cash. Realtors are going to have to do what they have to do for their own work which also requires you to review and sign things regardless. If I were you on your first few deals be as involved as possible to learn as much as possible. Kick back and sip Caronas on a beach once your retired and financially independent your first few are going to be work but it gets easier.
Hope this helps/ gives you some insight. Anyone will say thats made it will say just take action and do it even if you lose you gain valuable insight and find out if real estate is for you.