Just a simple 499 sq ft city approved plan, single story, 1 bed/1bath/full kitchen adu with living space.

Additionally, strong tax planning is essential, as your W2 income limits your ability to deduct passive losses.

Quote from @Daniel Tanasa: Another option is to get a small cash out refinance from the house you plan on fixing up, if is in financeable condition, and use that to fix it up, while still cash flowing.

Multi-family real estate is something I am planning on doing after I graduate college and eventually full-time. 

If you plan to build your own primwry you absolutely want it to be your primary first not investment land first.

The game plan would be to keep this structure for 1-2 years with future full sale.

We have some of those calculators we plan to to add in 2025 for those who want it all-in-one.

Nor can they see any construction plans to assess true value.

Mom’s estate plan should probably address this separately from you. 

I use to  give estate planning seminars with an attorney and stock broker, so I know it's not that big of a deal.