Can anyone recommend good companies to root cause  and implement solution to fix this issue?

There's a good chance the issue(s) you face has already been discussed and answered.Ask questions in the appropriate forum.

I haven't had any issues dealing with AirBNB...yet.

I've run into some issues where clients get a little anxious over a valuation that came in low or a condition comes up that is fairly minor. 

.- China is issuing record debt to stave off recession, while the US bull market continues (Wallerstein).- Texas vs California Home Construction.

You need an income that meets three requirements:Rents increase faster than inflation to offset constantly rising prices.It must be reliable; it continues even during economic downturns.It must last throughout your lifetime.These are all long-term requirements, so the current interest rates are not the major issue.

A lot of maintenance issues are repeated again and again on all the properties a PMC manages.So, a PMC has pretty good idea of what many issues cost.

I remember years ago our attorney reviewing one such issue for a client that was coming over to us. 

The rehab expenses don't line up but they are not stealing, I would suggest having a zoom call or sit down with their PM or account manager to see what is not lining up and where you see issues compared to what they have on their sheet. 

Your VA loan will be crucial to your real estate investing growth, especially since it affords you the potential opportunity to own more than one property, depending on your overall allotment.For active military personnel, that conundrum of where to invest and where you will end up is always part of the issue that sometimes causes analysis paralysis so it's great you have one in VA Beach already.