They are essentially an alternative service to having a PO Box at the Post Office.

Any suggestions whether it's worth it to go with traditional big law attorneys or do something alternative?

There are lenders that will allow group usages but I’d imagine most are residential and can be financed with a DSCR or other alternative income verification such as bank statements  or an updated P&L.

Definitely take advantage of it the first time, but align your strategy to look for an alternative when you are looking for your third property.  

@Chase Wright may be easier, and somewhat "safer", to buy a new primary and rent out your current home.Depends on motivation and ROI.

Alternatively, can you purchase a new primary residence with a VA loan and use your current one as a rental? 

Check in with @Joseph Chiofalo for alternatives if the loan amount is above $75-100k.

If certain requirements are met, this is possible with as little as 3.5-5% down for full income verification borrowers and 10% down for alternative income verification. 

BTW, Ai is about to replace all real estates agents in the next 5 years, seek an alternative as fast as you can.

. - I totally agree with you on the location piece and that makes this tough.This isn't just about cash flow but a seemingly unique and great oppty for taking $500k of tax free Sec121 dollars off the table.Curious if you see the the alternative strategy to be : - to hold the SFH long enough for appreciation + CF to cover the $500k + taxes on those capital gains if selling?