800+ Credit Score but Only Qualify for Low Loan Amount.

[Jim Webster]

My wife and I both have 800+ credit scores (thanks Dave Ramsey).  No debt besides a mortgage for less than 50% of our $300+K primary residence.  (Thank again Dave)  $90K combined income.  

Recently caught the REI bug and lenders I've talked to will approve $40K-50K max due to the age of our accounts and lack of activity opening new lines of credit. I know maintaining 800+ is unrealistic and probably unnecessary in the investing arena. Primarily, we are looking for BRRRR and buy & hold properties and know rehab expenses are imminent.

Question - What's the best way to increase our lending limits without completely tanking our scores?     Also, we currently have @$30k in liquid funds, do we need access to more than $50K for these types of ventures?

Thanks for your input BP!