I have about 30k right now mostly in a HYSA and am planning to just hang on, I afford everything with my salary and roommates.

I would try to buy properties starting at a specific date so not large ticket items come up.

This is true, but can increase your chances of success by working with an experienced team.Financing Challenges: Unexpected rate hikes or tightening lending restrictions can complicate your plans. 

I plan to BRRRR this property to pay off the seller and get my money out and was wondering if you anyone has any suggestions on banks that can do refinances for mobile homes.

You need to have a plan of actions to take to collect if you even want a chance to see anything from those judgements.

Would need to know a bit more before giving a specific direction but it is usually best to hang on to your property and not sell whether you expand on it or rent it out and purchase a bigger property.  

I don't know the specifics of your state, but in Mississippi, my property manager has filled for garnishment for the amount of rent that is owed.

If you don’t plan to sell the lots w/mobile homes is there a reason you have to split the lot?

If you have specific questions about property management, I'll be happy to help!

Thanks  @Greg Scott   I was planning on getting an appraisal.