I can have separate bank accounts, debit cards, security deposit accounts etc. and now with new features like automatic recurring transfers things are even easier and time efficient 

Additionally, you could not move your Roth IRA funds into a Solo(k) because for some reason unknown to even the Department of Treasury (I asked them) Roth IRAs cannot transfer into the Roth bucket of a Solo 401(k).

In Declaration: #172 These transfers to  offshore bank accounts total nearly five million dollars.

They are very professional, reliable and informative.

If you have enough unit it will make sense to have cleaner on your payroll but to starting off, most common sense is to find a very high quality, reliable cleaner that works with your budget.

Changes some of my answer below, but here would be most of the types of transactions you would have in these accounts and between them.Property transactions would be: all property specific rents and expenses, allocated expense transfer to the master LLC and transfers to master LLC bank account for profit AND/OR property management fee.Master LLC transactions would be: Shared expenses going out, reimbursements/transfers from properties for their allocated share of those expenses coming in, the transfers from your properties deemed as profit AND/OR property management fee and then transfers to your personal accounts deemed as owner distributions.Other transfers that could occur is if the master LLC needs to transfer to the properties for capital expenditures above and beyond the reserves you might leave in their accounts.

Quote from @Matthew Drouin: @Alexander Zeisberg do title companies handle the transfer of title of MH in your state? 

Last two loans I did they did an Mai at no charge and they forgot a floor plan and had to get a one off for that one and no charge.. only thing we pay for is title insurance and escrow fee and property tax's and transfer tax if any.

If they can't do a money transfer directly to your bank, have them send a certified cheque using registered mail and signature required (they could send it to your work if you don't want to use your home address). 

@Philip Jones we've helped our clients do over a hundred.As some of the lenders posting have pointed out, the challenges are:1) Property value and corresponding loan size2) Appraisals have much better comparables than 5 years ago, but may still be an issue.3) Property condition can be an issue via the appraisal4) Ownership seasoning - most lenders looking for 6+ months or incredible documentation for cost of improvements made.5) Most DSR lenders require professional property management.Always try a small local bank or credit union, but most will expect you to transfer your business bank accounts over to them.