Residential RE is based on what your neighbors pay so if you are all in less than they are every time you are doing well

Educate yourself with books, podcasts, and market research, define your goals, and build a team of professionals to support your journey.

Here are a few suggestions on how you can maximize the wealth of information available: Check out the blogs and podcasts, or take advantage of the search feature (magnifying glass).

Hi Gege, I would recommend listening to some of the podcasts from BiggerPockets, they really help a lot when you are getting started.

RE Investing is much tougher right now than it was 5 years ago.I personally spend at least an hour per day every day deepening my knowledge - reading, webinars, youtube videos, podcasts, formal industry trainings/certifications, etc.

Yeah, it is based on the state's regulators.

Value is based on each individual and they will need to determine if they think there is any value.

Do you consider worst case scenario and base your potential offer based on this? 

Use forums to ask specific questions and listen to BiggerPockets podcasts from the past couple of years.

Begin by educating yourself through books like The House Hacking Strategy and podcasts like BiggerPockets, and join online communities for support.