Does their collective business occupy one of the spaces in the building? 

House A has a lower (but still high) wind storm deductible at 1%, while house B has a 5% deductible, and no one is occupying it as it was just closed.

here is the situation. i left a really good paying job to take care of my 81 year old parents because my dad is chronically ill and my mom is almost there. i wont go into too much detail, but my sis doesnt help them. ill leave it at that. we have a person who comes twice a week to help with cleaning and other household tasks. i carry the bulk of the weight cooking their meals, running errands, grocery shopping, picking up meds, and taking them to dr appointments. its a full time job. i get a small salary of $1000 a month from a care giver sub contractor for the VA. ive been paying my bills with what savings ive had, but only have a few months of funds left. i own a duplex. i have over 200k in equity. i live in texas and texas has weird laws about refi and heloc/heloans when the property is 4 units or less and owner occupied. i would rather not sell, but if thats my only option i will have to at some point.does anyone have any advice or possibly be able to point me to lenders who might be able to work with my situation?

It is perhaps my favorite meetup that is not associated with a larger group (such as SDRE, NSDRE, SDCRE).For the most part the lenders only lend on non owner occupied ADU, at low percentage of ADU addition costs because they know that usually the value extract will be significantly less than the ADU addition costs.  

I bought a 1960s 355k duplex with an owner occupied loan. 7.5% interest, about 2800 mortgage payment.

If you're not present to let them in (or have the space occupied for whatever reason, etc.), they should be notifying you and you may have to face any repercussions (penalties, pauses on your permits, etc.) 

SBA requires a minimum of 51% owner occupied.  

An investor would typically finance via non-owner occupied conventional at 20% or 25% down @Robin Simon, so DSCR lenders use to underwrite the performance of the property based on the actual room rent?

I see this is posted in the house-hack forum so I'll make the assumption that you want to owner-occupy your next investment.To work more hands-on, you'll want to spend time searching for deals, analyzing deals, and networking/building a team.Before your property search, I'd recommend speaking with a lender to find out how much you'll qualify for.

Here are the numbers I know so far:Rents4 units all currently occupied on one year leases- #1: 1/1 $995 monthly- #2: 1/1 $995 monthly- #3: 1/1 $995 monthly- #4: 2/1 $1,100 monthly- Gross rents: $4,085 monthlyExpenses- $12,070 taxes annually- $350 monthly insurance (my estimate, they have liability only right now)- $175 monthly landscaping- $120 water (electrical on separate meters, tenant pays)- Total expenses: $1,651 monthlyNOI around $2,434 before vacancy, maintenance, and management (although i would likely self-manage these)Property needs about $50K in other repairs and udpates from what I can see.