Often times pro investors will create separate LLCs for each of the properties they buy to limit the risk. 

I had a 4 year history with her prior to her separation.

I want to create a new checking account to keep all my house income expenses separate from personal expenses.

I would suggest a separate Realtor for that area. 

Are you implying that I should maintain two separate bank accounts - one for holding security deposit and the other for rental management expenses?

You can create separate notes for different types of tasks or routines, and it’s all stored online, so you can access it from anywhere.

I wanted to use a 203k loan but have been told that it doesn’t qualify because it’s two separate houses. 

This general log gives an overview of your activities, but it might not be detailed enough for IRS purposes.Example 2: Detailed LogMonday, 7/1/247 AM - 7:30 AM: Monitored security cameras1:30 PM - 2:15 PM: Responded to tenant question regarding parking3:00 PM - 3:30 PM: Monitored security cameras4 PM - 4:15 PM: Checked mail and delivered to tenants, as necessary7 PM - 7:30 PM: Monitored security cameras10:30 PM - 11 PM: Monitored security cameras7 AM - 11 PM: Remained on standby all day for tenant needs/emergenciesThis detailed log breaks down your activities into specific time slots, which can provide a more precise account of how your time was spent.Best Practices for Record-KeepingBe Specific: Break down your activities into smaller time intervals, as shown in the detailed log example.Use a Logbook or App: Consider using a time-tracking app or a dedicated logbook to keep daily records.Document Standby Time: Clearly note the hours you are on standby for emergencies, but also separate it from active tasks.Include All Activities: Document everything from advertising to maintenance and tenant interactions.Consulting with a Tax ProfessionalGiven the complexity of qualifying for REPS, it's always a good idea to consult with a tax professional.

What are your thoughts on blocking off the double doors and using it as a separate, private unit.

I also like the fact if in the future I can sell each separately if I wish.