Looking for any advice for someone starting out in this realm.   

If you like to connect and chat please reach out. 

I hope you don't like this family member.

This extra road frontage now also qualifies my property to be able to be legally converted into a triplex from a duplex.

This is troubling.

This will clarify and reinforce what you are reading.

While my husband and his ex make a similar income and do not exchange child support due to us pointing that out in court a couple of years ago, she actively request all financial documents that she possibly can and examines our taxes, etc. 

Due-on-Sale Clause: Most mortgages have this clause, which could let the lender call the loan due if you transfer the property.

@Angel Perez  You should also check out smaller local banks and ask to speak to the commercial lending department. 

Feel free to reach out and we can schedule a call.