I inherited a partnership in a 22 unit commercial building with 8 restaurants, a grocery store, a couple of personal care services, and various other businesses.

Would a HELOC or home equity loan on my personal home be a good idea to fund this?  

@Grant Shipman Great stuff, I'm a big fan of co-living/rent by room strategy, and I do it here locally in Denver metro, and it is the best strategy in today's market for any house hacker to live for free or make money while living there, but they have to sacrifice personal space.

I have sold some properties years ago on lease options where the tenant buyers actually exercise their right and purchased the property. ( I was in the deed.)The reason I am concerned to tie another person’s property up  with the lease option is that people can change their mind, as in the seller.  

Well if you go together it could split it and get basically nothing - spend $2-3k file a lawsuit and get a judgment you are first in line… Also in many instances you can slap that judgment on his personal residence as well and foreclose on that.

I personally have a separate account for each property I own.

I personally would fix the 3 windows and maybe consider cutting the rent a little more to gather more interest. 

ALSO, You can buy your personal home that is a rehab, fix it up then live there for 2 years.

Shame on those here recommending it.Similarly, don’t even consider borrowing against your personal residence—even if you could qualify.

While you are at it, put the next person on MTM to create some equity in the contract when you have problem in the future.