These can be great for making initial connections and learning about specific markets.Since you're thinking long-term, consider spending some time in your target markets to build relationships with agents, property managers, and contractors.

There has been zero engagement without me taking the initiative with regards to the process leading up to the foreclosure sale.  

Could seller finance (not recommended) to reduce initial burden and spread it out over time

Once you get past the initial learning curve and have some basic knowledge, it gets a lot easier though and at that point most knowledge gaps can be filled as they come up.

In this example the initial investment would be $50,000.So the owner of the IRA would have to pay 37% in taxes seems to negate the interest paid of 12.5% annually.Do I have this correct?

I'm really excited about the potential of investing in residential multifamily properties with my dad, who's willing to contribute the initial funds.We're currently working on getting our financial house in order, paying off debt, and building a solid nest egg.

When including maintenance/cap ex, vacancy, pm, misc he will have little, and possibly negative, cash flow.if he invested almost $250k to add less than $150k of value (assume some of the current value came from the home appreciation), there is no cash flow until the initial negative equity position is recovered.  

However, the higher initial investment, property management complexity, and potential vacancy risks can be challenging.

It would cost less, initially, if a person kept it as four units and either rented the property out less of the time or not at all and kept it strictly as a vacation property.Any thoughts are appreciated

The great thing about BRRRR is that it allows you to keep recycling your initial cash, which makes it easier to scale quickly while building cash flow and equity.Flipping homes, in my opinion, is more of a job than an investment.