Hello Abby,
My answers to your questions, everyone has different opinions but here are mine:
1) Yes it is 100% worth it, if not only for the business line of credit you can establish
2) Deals are harder and harder to find, at least where I am from and surrounding areas. Interest rates are high and prices are high.
3) Yes it can be a great way to start snowballing money, but remember some critical parts. Your numbers have to be near perfect. You have to include all the costs appropriately. Realtor fees, income tax, correct arv, correct costs. Its not uncommon for someone with little experience to overestimate how much they will walk away with and under estimate construction costs. Materials and labor have gone up greatly in the past few years.
4) 50,000 but average home costs were only 200,000 at the time ( 25% down commercial loan). Depending on how you want to aquire the property, or flip, or whatever I think you need to strategize how you want to acquire property first then come up with the number based on a percentage of down payment + closing costs of the house prices you are targeting.
5) Talk to a few local bank lenders and see what first time home buyer programs they are offering. If your going to house hack and live in a place it can be a great way to get a property for much less than 25% down. Just bear in mind your payment will be higher the less you put down.
Hope this helps. Feel free to reach out if you have any other questions.