@Jeremy HartwigYou are missing a lot of important data, such as median income of the area, rent comps in the area, what current values are.You are buying on actuals, but in many markets that have low supply and have a lot of demand, it makes it difficult buy based on actuals.

Buy and rent a minor fix property, nothing structural.  

If the new administration focuses on boosting housing supply or implementing tax incentives for real estate, we might see positive opportunities.

Avoid lenders that want to escrow your payments at closing, this increases your cash to close drastically and, in my opinion, is not the best structure even for new investors.

Imagine you bought a property for $2M.The land (excluding any structures) is valued at $400K.Since land is not depreciable in the eyes of the IRS, we subtract the land value from your purchase price to get your depreciable basis.Your depreciable basis is simply where a cost seg engineer starts from when allocating your eligible assets into either 5, 7, or 15 year property.In the scenario above, your starting basis would be $1.6M since your basis = your purchase price - the land value.Having an accurate land value is essential to getting your depreciation/bonus depreciation calculations right.This is the starting point for any cost seg study that you do.

ADUs implies there is a residential building to be an accessory to, but inn my market the accessories can be overwhelming to the primary structure.  

The other options you are playing with fire as using a HELOC that is paying interest is essentially buying with 100% financing.Having no skin in the game has always been a high risk strategy and people were able to get away with it the past few years due to the money supply and inflation but I would not use that as the measuring stick.

He's a really smart guy when it comes to supply, demand, rent control, and overall investing

Where if we use our own personal funds (not funds acquired from our spouses or from our marriages) our business would be strictly ours and our spouses have no claim to it should one of us ever divorce from our spouse. 2) Invest with my husband using the equity from our home but I want to have a business structure that is separate from the marriage where we are both partners and we are paid for our individual contributions to the business.What type of business partnership could I have with my husband that can be setup in that way?

So you are doing construction in your yard, but not directly connected to the existing structure the tenant lives in and they are already complaining?