Above 5+ units is possible but more challenging and rates are where you would expect them..50-65%LTV will be common for higher plex units, a common workarounds is if they have a US based family member or business partner with an LLC..Some investors or lenders have specific countries of origin that are restricted or even prohibited, check with your mortgage professional. 

My mother is being gifted a parcel of her family land near Charlotte, in Union county.  

There are usually clues on the listing such as # of units listed vs the type of multi-family.

Any referrals on multi family home insurance compnies i can get quotes from?

If the property is rented, examine the current lease documents, rent roll and rental payment history over the last 12 months.

Not every state requires it so they may not have one thats not a deal killer but if they are go to NMLS public look up very easy  you can see history of the company and loan agents.4.

New investor and considering a multifamily investment. The property is 2 units and a 3 story townhouse. I would be purchasing with an FHA loan, how do i assess if the deal is worth it?The property comes with one unit ...

From my research, the average closing cost of a single-family home in Texas is between 0.98% to 1.31% of the final home sales price.

My plan at the moment is to look for single family residences in or near my home city (Mobile, AL) in the price range of 50k - 75k to BRRRR.

Other options private lender (family/friends), personal loan, cash advance on credit cards, place on credit card, sell something.