If a partnership turns into a single member LLC due to a partner leaving, a new EIN is required but how would a business still keep the branding of their original name if creating an EIN requires a different name?

There shouldn't be any need to negotiate them as you would negotiate rent, they just are what they are, and the owner is required to provide proof of those costs to you.

Obviously they require electrical near by.

Find out what their requirements are.

I could put the 3.5% FHA loan route but not sure if I want to deal with FHA requirements.  

Bring on a partner with at least a decent FICO, experience in rehabbing would also help, but not required. 3.

The border income that you listed is only required when purchasing a primary residence, you can't use the roommate tenants , even with existing leases to help qualify for the mortgage.If you are buying it as a investment property, you just need to record it on your tax return for 2024 tax return and in 2025, when you file your taxes, you will be able to count it positively for your debt to income ratio.

@Jonathan Klemm   My plan is to eventually turn the two units into a SFH, which I know would definitely require permits. 

In the end, we rent each room by week, but require a 30 day minimum stay up front.  

I have checked rental comps on the BP calculator and have found that homes in this area with these stats can rent for around $1100, but this is nowhere close to the required mortgage payment (Realistically I think I could have 2 tenants paying at least $1000 per month each, though this calculator has me thinking otherwise).