We're right at the start of the process, the chicken and the egg, and a little confused on how to pull this together.Essentially we need quotes to see how viable this actually is, but we don't have final plans to quote from, nor is land purchased.We've looked at Altus, and know what pricing SHOULD be.

I am considering purchasing land, have tiny homes built on it and rent them out. 

We purchased under a land loan with a 7 yr balloon at 5.95%; it is due 7/2025.

As an added bonus, doing all of this well can often land you on the "vendor list" of a company, putting your contact number as the first call to make when placing the next crew passing through.I apologize for the long-winded reply as you probably know and understand all of this, but there might be a reader that doesn't. 

I learned about their service in November of 2019 and signed up for their land trust setup back in January 2020.

They really do stand out in a neighborhood plus I doubt you could get permits to build in a established area.Much easy to build on a larger plot of land in the boonies, which is where I see most of these.In the end, once you get them looking nice, you could have done a stick built house or even a log cabin if you can harvest materials on your land for about the same or less.

In the process you are getting rid of the dross and dreck.Whether the property should be in land trusts or whatever is not your main concern.

Not only for the reasons you mention (easily manipulated, depending on format), but also have next to nothing to do with what your operations will look like.While I do agree that you should try to verify income, both through lease review, P&L, and if they will share: bank statements and tax filings, at the end of the day, I don't put a ton of value in seller financials, for many reasons.  

We would like to sell them and use a 1031 exchange to purchase a larger tract of land that we expect to close on before the end of the year.   

you can do a hard money style loan where its 50% down on the land and lender provides 100% of construction