I can afford to invest in B properties with larger down payments but I guess it means I may be doing more like 2-3 deals per year than 3-4.  

Property prices are lower compared to larger cities, offering the potential for higher returns, while the demand for rentals remains steady thanks to a large student population and growing workforce.

Build costs are basically double for the larger cabin.

I only charge markup on maintenance if it's a larger project that requires more coordination, supervision of the work, and inspection after completion.

If you put $25k in index funds/stocks at least you can liquidate quickly if you change your mind unlike a syndication. 

It's tempting early on to leverage as much as you can so you can do more deals and keep liquidity, but increased cashflow especially with PMI will make you sleep a lot better at night.

Leverage Local ResourcesEconomic Development Grants: Check with your city or county for grants or incentives aimed at affordable housing or community improvement projects.Local Banks or Credit Unions: They may be more flexible than larger financial institutions, especially if your project aligns with community needs.Partnership with Nonprofits: Collaborate with organizations interested in affordable housing or sustainable living.4.

For example, 6bd, 4 bath with like 3,000sq ft or larger?

Larger owners tend to analyze market rents monthly or even weekly and manage rents (or incentives) the best way they can.As long as the owner is engaged, the chance of adjusting rents is higher.

Maybe just try finding the deal and sending it over to a larger wholesaler for a JV fee?