The contractor will help me get a better understanding of how much the rehab level will cost.

. - this leads to management inefficiencies and waste- you have to rely on other people's judgment- you have an overhead cost burden for doing things remoteIt is tough enough to organize a carpet & paint rehab remote (ask anyone who did it the first time), let alone a full-scale BRRRRR.

However, if the high cost of living makes this impractical, you should consider a turnkey rental property.

What’s a good estimate you think I should have for the down payment, closing costs, repairs, holding costs, and reserves?

As much as anything like @Chris Seveney points out frequently the annual reporting can be complex and costly and its mandatory otherwise your running some serious SEC risks.. 

Turnover/Vacancy are VERY costly for a landlord.

You won't find multifamily properties and the houses are generally smaller (which is great for lower maintenance cost).  

Feel free to inquire about their staff qualifications if it's a larger organization.2.

Is there a good strategy into buying a smaller multifamily property while limiting out of pocket cost.

Most agents don't know anything about investing (especially the costs of fix and flip), but the ones that do are gold.