My lease is under my management company which is a single member LLC.. 

But I use to be able to link the property management portal to my bank account in case I need to contribute fund to the property management company's account.My accountant is willing to charge a small fees and handle the above payment for me, however I might have a bigger amount due to IRS after completing the 2023 TR (for capital gain tax), so I am not sure if I am comfortable to send my accountant a large amount and she then pay IRS.Also would anyone recommend any good / reliable accountant for my TR 2022 and 2023, who is also familiar with FIRPTA withholding?

I'd recommend getting 2-4 quotes from reputable GCs with extensive experience here in SD.

Dalmore seems to be one of the only (or very few) companies which have a platform developed which provides the seller a front end website designed for fractional real estate while having a backend for Dalmore to process transactions. 

We created our company, Rise Up capital, for this exact reason.

If you want to be a real company/syndication then do it the correct way.

I have numerous companies ask a lot of questions and then decide not to quote.

Finally, reputation is important.

We hired a company to rent our place only for leasing and we will manage once it is rented. 

This is probably a placement company working with a homeowner who has filed an insurance claim.