It's common to look for a good track record, professionalism, area expertise, and more when surveying for an agent. 

Is that inclusive of title insurance, appraisals, surveys etc.?

Note that many REIAs charge a small fee per meeting or for an annual membership. 6.

The tree being near the property line would make it easy to argue over without getting a survey done, which isn’t worth it, due to how cheap it was for me to remove it.

There's a lot of questions still outstanding in your plan but I doubt this is something you can do without incurring all the deferred tax @Indra Tanudjaja.If you 1031 from the turnkey you must replace that with actual real estate - if you're joining a development venture it is highly likely that you are not actually investing in real estate but are buying membership interest in an LP or LLC that owns real estate. 

Comparable sales and rent surveys are the evidence you need. 

Which due to the amount of properties you have and if you purchase more, the Titanium package would be a better fit for you since there is no cost to set up an LLC or monthly membership after the initial payment.

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Off first impression I like airDNA better, because it says I can look at other units occupancy with the premium membership.

On our 120 unit bought two years ago we went from $319,090 to $721,920 and our 292 unit bought 2 months ago it went from $729,272 to $1,640,556 in annual depreciation.We paid ~ $3000 for the cost seg survey to be done so for us and it is an absolute no-brainer.Even with the accelerated benefits bleeding off over the first 15 years it makes total sense and hitting on what @Yonah Weiss mentioned, we are continually adding capital assets that we can then put back in to the cost seg pot.