If your bank ordered appraisal (if you had one from your purchase) is less than the assessed value, that's a good starting point to submit as supporting evidence.

To address this, we agreed that I would work in the business for six months to verify the financials, which so far align with his POS system.My main issue is that at 23, I don't have strong financials to get a conventional loan at 75% LTV with a ~7% rate, and the seller's lack of financials complicates bank approval.

When done properly, a series LLC gives members protection from personal liabilities arising from multiple properties or operations without having the extra expenses of multiple LLCs.Series LLC also known as master LLC provides liability protection across multiple LLC entities.

I'd rather not have to open another bank account if possible. 

I am looking for cashflow  - no really flip and fix market .Looking for person/agent/team   who is expert in the market can guide in securing the first  two deal .I am open to consider the single family house and multifamily apartment building 

It's not going to cause it to appraise for more as the appliances are considered "personal property" and not part of the actual property.

Chris…I don't believe I need E&O insurance….I don't want to be a real estate agent…just want to use MLS for my personal real estate investments.

Talk to your local bank/credit union first to see if they do such a things.

oh yea, I recently started my own business (2021 was my fist year in business, commercial door company, non real estate related venture) and gave up my w2 income and was already denied another refinance on my primary due to lack of self employment history. this was with the bank my business uses with and they want 2 years of self employment income on the books. end of 2022 will be 2 years so financing may be an issue if I want to 1031 now, but i havent really thought all of that out yet either. 

@Wes Blackwell  one must be aware of the anti equity stripping laws probably good to caveat that preforeclsoure advice.. there in Oregon you must be a licensed pre foreclosure person to even engage with helping folks in foreclosure..