I could’ve settled and I think I still would’ve made money but I want/need my first deal to be good/great as to help kickstart my REI journey and by my second and third property as well.

She's an agent shopping for her second property, ie., fifth unit.

After a year in the property, buy a second house hack, do the same thing.

I would have to second Tim's recommendation for Alex Goldovsky's book.

They did mention getting a co-sign from their father.

My question is, should I take out another loan for the second property and will that really hurt my credit?

Regarding your second question.

Ok, I guess that was 5 questions but here's my second question.2) What percentage of your personal portfolio are you considering investing in this property?

I have an offer to purchase a home worth 80,000 right now but the homeowner has a second mortgage on the home and still owes 60,000.

the best way to do this is to have lawyer write it up. the second best way is to purchase on online (BP sells state specific leases, prepared by attorneys) and you can always make some modifications to it...but the most important part is to run the purchased lease by a local real estate attorney to make sure it and any additions comply with state law