Hi Navid-To start, I am sorry to hear about your father's dementia.It is fortunate that you were able to sell his business and he invested in 6 investment properties in California 10-15 years ago and he and your mother are living on the cash flow from those.You now are thinking about expanding your father's investment real estate portfolio because California is so expensive to live for them but don't have the same experience and confidence being new to investing.This is an honorable goal and you are right to be cautious and thoughtful.You asked about whether you should cash out refinance each house or borrow against all houses to get downpayment for new properties.

For example, I got my property in the medical center bc its close to UTSA for my tenants, and when they move out I can rent it to travel nurses, UTSA students, or medical students.

I'm sure all of our mothers told us to not touch the fire. 

My grandfather is dead and my great aunts, that the property was supposed to go to, are in their nursing homes now with dementia and it seems no one (their kids) is interested (or they may just not have the funds) in restoring it.

Even your mother.

I am a travel nurse but have been saving up to start REI in the Milwaukee area (where my husband and I plan to eventually settle down).

I know a lot of people target the travel nurse demographic, but there are also a lot of patients that come for long-term treatments and need housing.Does anyone have experience catering to this demographic, and what are your thoughts on making the house ADA compliant? 

First 3 years always paid 2 months in advance for a yearly lease  because as a mother of 5 it was conveniant for me.

I was a property manager for my mother’s investment properties before she passed with dementia, and most of her tenants paid on time, except for one I had to evict.  

Home is worth about $200k, my mother wants to rent it out for 1400/month.The tenant she wants to move in is a woman with 3 kids and a guy, income is $2720 (but my mother says the guy makes the same income).