lower the size of your unit and therefore your build cost per unit, your sale price will go down but focus on density and get familiar with zoning and what your city will approve. my best suggestion is to do it in downtown districts where there is unlimited height and unlimited floor area and you can build every square inch of the property and reduce parking because of proximity to transit. property values are higher, rents are higher in downtown markets, there are just too many economies of scale compared to suburban deals.

One thing to note, is that if you are doing flips in either Solo or SDIRA the IRS is likely to see that as running a business and you could be subject to UBIT (unrelated business tax) which scales up to 37% so it can be pretty hefty depending on the numbers. 

This will come in handy as you begin to scale.5.

And I just quickly found out that I wanted something with a little more scale and a little more meat on the bone.

Well, you can lend directly to me :)  I'm scaling my flipping business this year.

There are also some groups that get you access so additional features, business training, investment trainings, strategies, business networks for investors to scale up with each other, etc.

Is there a certain number of properties that you feel someone hits that it wouldn't be the best software to use because of your scale?

They're not going to give real discounts on a large scale in a hot market.Typically, they come with a supposedly killer deal that they say you're unlikely to ever see again.

This will come in handy as you begin to scale.5.

It has made everything a breeze and I think it would be conducive to scaling too.