I got tested 2x and tested negative so Im back at my parents until she tests negative.I feel like I should be prorated the days when I cant come back into the house at all. 

Some background information on myself, I just graduated college with a degree in accounting and I am fortunate to have received a gift of $150,000 cash from my parents to start an investment portfolio.

Ie a parent LLC owns a child LLC?

A child may act on behalf of their parent, but if their name isn't on the title, they are not the seller.

After sitting on the sideline for a year or so, the economic uncertainty from Covid-19 has inspired me to take a leap of faith and hopefully acquire my first rental property this year.My parents recently retired and moved to Lake Worth, Florida, and as a result I'll likely be down there a few times a year.

The seller is likely the child of the previous owner and may have grown up in the house giving it sentimental value that they are willing to pay for. 

Here is my current situation & I’m sure I’m not alone-My daytime business travels to child care sites & provides ‘hands-on’ physical education programming.

My younger brother wants to move out of the parents’ place but his credit isn’t great.

Most likely they won't sell to you since you are not 'legal' but instead buy with your over 18 parents. $1K is trivially small in a capital intensive business like real estate, especially when you are buying from a 'wholesaler'.

@Randall Alan I own no propertiesl ive with my parents served 4 yrs in army I get 4k monthly for 100% disability my dad owns 3 business in Newark and philly area which I manage and earn 1k a week also I own 15 atms in the philly area which make me 11k a month(around 850 each or so) under my dads business so that money I don't make technically because there under he's business accounts finally I own 5 gambling machines which are legal in philly which make me 10k or so a month .